72661120

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{331}}^1$

素因数の和:371

約数の個数: 128

約数和(自身を含む): 203184000

約数和(自身を除く): 130522880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 280, 320, 331, 343, 392, 448, 490, 560, 640, 662, 686, 784, 896, 980, 1120, 1324, 1372, 1568, 1655, 1715, 1960, 2240, 2317, 2648, 2744, 3136, 3310, 3430, 3920, 4480, 4634, 5296, 5488, 6272, 6620, 6860, 7840, 9268, 10592, 10976, 11585, 13240, 13720, 15680, 16219, 18536, 21184, 21952, 23170, 26480, 27440, 31360, 32438, 37072, 42368, 43904, 46340, 52960, 54880, 64876, 74144, 81095, 92680, 105920, 109760, 113533, 129752, 148288, 162190, 185360, 211840, 219520, 227066, 259504, 296576, 324380, 370720, 454132, 519008, 567665, 648760, 741440, 908264, 1038016, 1135330, 1297520, 1482880, 1816528, 2076032, 2270660, 2595040, 3633056, 4541320, 5190080, 7266112, 9082640, 10380160, 14532224, 18165280, 36330560, 72661120]

約数ペア:

[(1, 72661120), (2, 36330560), (4, 18165280), (5, 14532224), (7, 10380160), (8, 9082640), (10, 7266112), (14, 5190080), (16, 4541320), (20, 3633056), (28, 2595040), (32, 2270660), (35, 2076032), (40, 1816528), (49, 1482880), (56, 1297520), (64, 1135330), (70, 1038016), (80, 908264), (98, 741440), (112, 648760), (128, 567665), (140, 519008), (160, 454132), (196, 370720), (224, 324380), (245, 296576), (280, 259504), (320, 227066), (331, 219520), (343, 211840), (392, 185360), (448, 162190), (490, 148288), (560, 129752), (640, 113533), (662, 109760), (686, 105920), (784, 92680), (896, 81095), (980, 74144), (1120, 64876), (1324, 54880), (1372, 52960), (1568, 46340), (1655, 43904), (1715, 42368), (1960, 37072), (2240, 32438), (2317, 31360), (2648, 27440), (2744, 26480), (3136, 23170), (3310, 21952), (3430, 21184), (3920, 18536), (4480, 16219), (4634, 15680), (5296, 13720), (5488, 13240), (6272, 11585), (6620, 10976), (6860, 10592), (7840, 9268)]