1638800

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{241}}^1$

素因数の和:276

約数の個数: 60

約数和(自身を含む): 4186116

約数和(自身を除く): 2547316

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 241, 272, 340, 400, 425, 482, 680, 850, 964, 1205, 1360, 1700, 1928, 2410, 3400, 3856, 4097, 4820, 6025, 6800, 8194, 9640, 12050, 16388, 19280, 20485, 24100, 32776, 40970, 48200, 65552, 81940, 96400, 102425, 163880, 204850, 327760, 409700, 819400, 1638800]

約数ペア:

[(1, 1638800), (2, 819400), (4, 409700), (5, 327760), (8, 204850), (10, 163880), (16, 102425), (17, 96400), (20, 81940), (25, 65552), (34, 48200), (40, 40970), (50, 32776), (68, 24100), (80, 20485), (85, 19280), (100, 16388), (136, 12050), (170, 9640), (200, 8194), (241, 6800), (272, 6025), (340, 4820), (400, 4097), (425, 3856), (482, 3400), (680, 2410), (850, 1928), (964, 1700), (1205, 1360)]