72874240

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^2\times {\mathrm{197}}^1$

素因数の和:252

約数の個数: 108

約数和(自身を含む): 186369876

約数和(自身を除く): 113495636

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 197, 256, 272, 289, 320, 340, 394, 544, 578, 640, 680, 788, 985, 1088, 1156, 1280, 1360, 1445, 1576, 1970, 2176, 2312, 2720, 2890, 3152, 3349, 3940, 4352, 4624, 5440, 5780, 6304, 6698, 7880, 9248, 10880, 11560, 12608, 13396, 15760, 16745, 18496, 21760, 23120, 25216, 26792, 31520, 33490, 36992, 46240, 50432, 53584, 56933, 63040, 66980, 73984, 92480, 107168, 113866, 126080, 133960, 184960, 214336, 227732, 252160, 267920, 284665, 369920, 428672, 455464, 535840, 569330, 857344, 910928, 1071680, 1138660, 1821856, 2143360, 2277320, 3643712, 4286720, 4554640, 7287424, 9109280, 14574848, 18218560, 36437120, 72874240]

約数ペア:

[(1, 72874240), (2, 36437120), (4, 18218560), (5, 14574848), (8, 9109280), (10, 7287424), (16, 4554640), (17, 4286720), (20, 3643712), (32, 2277320), (34, 2143360), (40, 1821856), (64, 1138660), (68, 1071680), (80, 910928), (85, 857344), (128, 569330), (136, 535840), (160, 455464), (170, 428672), (197, 369920), (256, 284665), (272, 267920), (289, 252160), (320, 227732), (340, 214336), (394, 184960), (544, 133960), (578, 126080), (640, 113866), (680, 107168), (788, 92480), (985, 73984), (1088, 66980), (1156, 63040), (1280, 56933), (1360, 53584), (1445, 50432), (1576, 46240), (1970, 36992), (2176, 33490), (2312, 31520), (2720, 26792), (2890, 25216), (3152, 23120), (3349, 21760), (3940, 18496), (4352, 16745), (4624, 15760), (5440, 13396), (5780, 12608), (6304, 11560), (6698, 10880), (7880, 9248)]