21304440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:154

約数の個数: 192

約数和(自身を含む): 75479040

約数和(自身を除く): 54174600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 31, 36, 40, 45, 46, 60, 62, 69, 72, 83, 90, 92, 93, 115, 120, 124, 138, 155, 166, 180, 184, 186, 207, 230, 248, 249, 276, 279, 310, 332, 345, 360, 372, 414, 415, 460, 465, 498, 552, 558, 620, 664, 690, 713, 744, 747, 828, 830, 920, 930, 996, 1035, 1116, 1240, 1245, 1380, 1395, 1426, 1494, 1656, 1660, 1860, 1909, 1992, 2070, 2139, 2232, 2490, 2573, 2760, 2790, 2852, 2988, 3320, 3565, 3720, 3735, 3818, 4140, 4278, 4980, 5146, 5580, 5704, 5727, 5976, 6417, 7130, 7470, 7636, 7719, 8280, 8556, 9545, 9960, 10292, 10695, 11160, 11454, 12834, 12865, 14260, 14940, 15272, 15438, 17112, 17181, 19090, 20584, 21390, 22908, 23157, 25668, 25730, 28520, 28635, 29880, 30876, 32085, 34362, 38180, 38595, 42780, 45816, 46314, 51336, 51460, 57270, 59179, 61752, 64170, 68724, 76360, 77190, 85560, 85905, 92628, 102920, 114540, 115785, 118358, 128340, 137448, 154380, 171810, 177537, 185256, 229080, 231570, 236716, 256680, 295895, 308760, 343620, 355074, 463140, 473432, 532611, 591790, 687240, 710148, 887685, 926280, 1065222, 1183580, 1420296, 1775370, 2130444, 2367160, 2663055, 3550740, 4260888, 5326110, 7101480, 10652220, 21304440]

約数ペア:

[(1, 21304440), (2, 10652220), (3, 7101480), (4, 5326110), (5, 4260888), (6, 3550740), (8, 2663055), (9, 2367160), (10, 2130444), (12, 1775370), (15, 1420296), (18, 1183580), (20, 1065222), (23, 926280), (24, 887685), (30, 710148), (31, 687240), (36, 591790), (40, 532611), (45, 473432), (46, 463140), (60, 355074), (62, 343620), (69, 308760), (72, 295895), (83, 256680), (90, 236716), (92, 231570), (93, 229080), (115, 185256), (120, 177537), (124, 171810), (138, 154380), (155, 137448), (166, 128340), (180, 118358), (184, 115785), (186, 114540), (207, 102920), (230, 92628), (248, 85905), (249, 85560), (276, 77190), (279, 76360), (310, 68724), (332, 64170), (345, 61752), (360, 59179), (372, 57270), (414, 51460), (415, 51336), (460, 46314), (465, 45816), (498, 42780), (552, 38595), (558, 38180), (620, 34362), (664, 32085), (690, 30876), (713, 29880), (744, 28635), (747, 28520), (828, 25730), (830, 25668), (920, 23157), (930, 22908), (996, 21390), (1035, 20584), (1116, 19090), (1240, 17181), (1245, 17112), (1380, 15438), (1395, 15272), (1426, 14940), (1494, 14260), (1656, 12865), (1660, 12834), (1860, 11454), (1909, 11160), (1992, 10695), (2070, 10292), (2139, 9960), (2232, 9545), (2490, 8556), (2573, 8280), (2760, 7719), (2790, 7636), (2852, 7470), (2988, 7130), (3320, 6417), (3565, 5976), (3720, 5727), (3735, 5704), (3818, 5580), (4140, 5146), (4278, 4980)]