19742100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:127

約数の個数: 216

約数和(自身を含む): 71245440

約数和(自身を除く): 51503340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 25, 28, 30, 34, 35, 42, 49, 50, 51, 60, 68, 70, 75, 79, 84, 85, 98, 100, 102, 105, 119, 140, 147, 150, 158, 170, 175, 196, 204, 210, 237, 238, 245, 255, 294, 300, 316, 340, 350, 357, 395, 420, 425, 474, 476, 490, 510, 525, 553, 588, 595, 700, 714, 735, 790, 833, 850, 948, 980, 1020, 1050, 1106, 1185, 1190, 1225, 1275, 1343, 1428, 1470, 1580, 1659, 1666, 1700, 1785, 1975, 2100, 2212, 2370, 2380, 2450, 2499, 2550, 2686, 2765, 2940, 2975, 3318, 3332, 3570, 3675, 3871, 3950, 4029, 4165, 4740, 4900, 4998, 5100, 5372, 5530, 5925, 5950, 6636, 6715, 7140, 7350, 7742, 7900, 8058, 8295, 8330, 8925, 9401, 9996, 11060, 11613, 11850, 11900, 12495, 13430, 13825, 14700, 15484, 16116, 16590, 16660, 17850, 18802, 19355, 20145, 20825, 23226, 23700, 24990, 26860, 27650, 28203, 33180, 33575, 35700, 37604, 38710, 40290, 41475, 41650, 46452, 47005, 49980, 55300, 56406, 58065, 62475, 65807, 67150, 77420, 80580, 82950, 83300, 94010, 96775, 100725, 112812, 116130, 124950, 131614, 134300, 141015, 165900, 188020, 193550, 197421, 201450, 232260, 235025, 249900, 263228, 282030, 290325, 329035, 387100, 394842, 402900, 470050, 564060, 580650, 658070, 705075, 789684, 940100, 987105, 1161300, 1316140, 1410150, 1645175, 1974210, 2820300, 3290350, 3948420, 4935525, 6580700, 9871050, 19742100]

約数ペア:

[(1, 19742100), (2, 9871050), (3, 6580700), (4, 4935525), (5, 3948420), (6, 3290350), (7, 2820300), (10, 1974210), (12, 1645175), (14, 1410150), (15, 1316140), (17, 1161300), (20, 987105), (21, 940100), (25, 789684), (28, 705075), (30, 658070), (34, 580650), (35, 564060), (42, 470050), (49, 402900), (50, 394842), (51, 387100), (60, 329035), (68, 290325), (70, 282030), (75, 263228), (79, 249900), (84, 235025), (85, 232260), (98, 201450), (100, 197421), (102, 193550), (105, 188020), (119, 165900), (140, 141015), (147, 134300), (150, 131614), (158, 124950), (170, 116130), (175, 112812), (196, 100725), (204, 96775), (210, 94010), (237, 83300), (238, 82950), (245, 80580), (255, 77420), (294, 67150), (300, 65807), (316, 62475), (340, 58065), (350, 56406), (357, 55300), (395, 49980), (420, 47005), (425, 46452), (474, 41650), (476, 41475), (490, 40290), (510, 38710), (525, 37604), (553, 35700), (588, 33575), (595, 33180), (700, 28203), (714, 27650), (735, 26860), (790, 24990), (833, 23700), (850, 23226), (948, 20825), (980, 20145), (1020, 19355), (1050, 18802), (1106, 17850), (1185, 16660), (1190, 16590), (1225, 16116), (1275, 15484), (1343, 14700), (1428, 13825), (1470, 13430), (1580, 12495), (1659, 11900), (1666, 11850), (1700, 11613), (1785, 11060), (1975, 9996), (2100, 9401), (2212, 8925), (2370, 8330), (2380, 8295), (2450, 8058), (2499, 7900), (2550, 7742), (2686, 7350), (2765, 7140), (2940, 6715), (2975, 6636), (3318, 5950), (3332, 5925), (3570, 5530), (3675, 5372), (3871, 5100), (3950, 4998), (4029, 4900), (4165, 4740)]