408030320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{811}}^1$

素因数の和:1174

約数の個数: 80

約数和(自身を含む): 1002852480

約数和(自身を除く): 594822160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 331, 380, 662, 760, 811, 1324, 1520, 1622, 1655, 2648, 3244, 3310, 4055, 5296, 6289, 6488, 6620, 8110, 12578, 12976, 13240, 15409, 16220, 25156, 26480, 30818, 31445, 32440, 50312, 61636, 62890, 64880, 77045, 100624, 123272, 125780, 154090, 246544, 251560, 268441, 308180, 503120, 536882, 616360, 1073764, 1232720, 1342205, 2147528, 2684410, 4295056, 5100379, 5368820, 10200758, 10737640, 20401516, 21475280, 25501895, 40803032, 51003790, 81606064, 102007580, 204015160, 408030320]

約数ペア:

[(1, 408030320), (2, 204015160), (4, 102007580), (5, 81606064), (8, 51003790), (10, 40803032), (16, 25501895), (19, 21475280), (20, 20401516), (38, 10737640), (40, 10200758), (76, 5368820), (80, 5100379), (95, 4295056), (152, 2684410), (190, 2147528), (304, 1342205), (331, 1232720), (380, 1073764), (662, 616360), (760, 536882), (811, 503120), (1324, 308180), (1520, 268441), (1622, 251560), (1655, 246544), (2648, 154090), (3244, 125780), (3310, 123272), (4055, 100624), (5296, 77045), (6289, 64880), (6488, 62890), (6620, 61636), (8110, 50312), (12578, 32440), (12976, 31445), (13240, 30818), (15409, 26480), (16220, 25156)]