161781840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{619}}^1$

素因数の和:663

約数の個数: 240

約数和(自身を含む): 613502400

約数和(自身を除く): 451720560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 88, 90, 99, 108, 110, 120, 121, 132, 135, 144, 165, 176, 180, 198, 216, 220, 240, 242, 264, 270, 297, 330, 360, 363, 396, 432, 440, 484, 495, 528, 540, 594, 605, 619, 660, 720, 726, 792, 880, 968, 990, 1080, 1089, 1188, 1210, 1238, 1320, 1452, 1485, 1584, 1815, 1857, 1936, 1980, 2160, 2178, 2376, 2420, 2476, 2640, 2904, 2970, 3095, 3267, 3630, 3714, 3960, 4356, 4752, 4840, 4952, 5445, 5571, 5808, 5940, 6190, 6534, 6809, 7260, 7428, 7920, 8712, 9285, 9680, 9904, 10890, 11142, 11880, 12380, 13068, 13618, 14520, 14856, 16335, 16713, 17424, 18570, 20427, 21780, 22284, 23760, 24760, 26136, 27236, 27855, 29040, 29712, 32670, 33426, 34045, 37140, 40854, 43560, 44568, 49520, 52272, 54472, 55710, 61281, 65340, 66852, 68090, 74280, 74899, 81708, 83565, 87120, 89136, 102135, 108944, 111420, 122562, 130680, 133704, 136180, 148560, 149798, 163416, 167130, 183843, 204270, 222840, 224697, 245124, 261360, 267408, 272360, 299596, 306405, 326832, 334260, 367686, 374495, 408540, 445680, 449394, 490248, 544720, 599192, 612810, 668520, 674091, 735372, 748990, 817080, 898788, 919215, 980496, 1123485, 1198384, 1225620, 1337040, 1348182, 1470744, 1497980, 1634160, 1797576, 1838430, 2022273, 2246970, 2451240, 2696364, 2941488, 2995960, 3370455, 3595152, 3676860, 4044546, 4493940, 4902480, 5392728, 5991920, 6740910, 7353720, 8089092, 8987880, 10111365, 10785456, 13481820, 14707440, 16178184, 17975760, 20222730, 26963640, 32356368, 40445460, 53927280, 80890920, 161781840]

約数ペア:

[(1, 161781840), (2, 80890920), (3, 53927280), (4, 40445460), (5, 32356368), (6, 26963640), (8, 20222730), (9, 17975760), (10, 16178184), (11, 14707440), (12, 13481820), (15, 10785456), (16, 10111365), (18, 8987880), (20, 8089092), (22, 7353720), (24, 6740910), (27, 5991920), (30, 5392728), (33, 4902480), (36, 4493940), (40, 4044546), (44, 3676860), (45, 3595152), (48, 3370455), (54, 2995960), (55, 2941488), (60, 2696364), (66, 2451240), (72, 2246970), (80, 2022273), (88, 1838430), (90, 1797576), (99, 1634160), (108, 1497980), (110, 1470744), (120, 1348182), (121, 1337040), (132, 1225620), (135, 1198384), (144, 1123485), (165, 980496), (176, 919215), (180, 898788), (198, 817080), (216, 748990), (220, 735372), (240, 674091), (242, 668520), (264, 612810), (270, 599192), (297, 544720), (330, 490248), (360, 449394), (363, 445680), (396, 408540), (432, 374495), (440, 367686), (484, 334260), (495, 326832), (528, 306405), (540, 299596), (594, 272360), (605, 267408), (619, 261360), (660, 245124), (720, 224697), (726, 222840), (792, 204270), (880, 183843), (968, 167130), (990, 163416), (1080, 149798), (1089, 148560), (1188, 136180), (1210, 133704), (1238, 130680), (1320, 122562), (1452, 111420), (1485, 108944), (1584, 102135), (1815, 89136), (1857, 87120), (1936, 83565), (1980, 81708), (2160, 74899), (2178, 74280), (2376, 68090), (2420, 66852), (2476, 65340), (2640, 61281), (2904, 55710), (2970, 54472), (3095, 52272), (3267, 49520), (3630, 44568), (3714, 43560), (3960, 40854), (4356, 37140), (4752, 34045), (4840, 33426), (4952, 32670), (5445, 29712), (5571, 29040), (5808, 27855), (5940, 27236), (6190, 26136), (6534, 24760), (6809, 23760), (7260, 22284), (7428, 21780), (7920, 20427), (8712, 18570), (9285, 17424), (9680, 16713), (9904, 16335), (10890, 14856), (11142, 14520), (11880, 13618), (12380, 13068)]