128123360

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19531}}^1$

素因数の和:19587

約数の個数: 48

約数和(自身を含む): 310090032

約数和(自身を除く): 181966672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 19531, 39062, 78124, 97655, 156248, 195310, 312496, 390620, 624992, 781240, 800771, 1562480, 1601542, 3124960, 3203084, 4003855, 6406168, 8007710, 12812336, 16015420, 25624672, 32030840, 64061680, 128123360]

約数ペア:

[(1, 128123360), (2, 64061680), (4, 32030840), (5, 25624672), (8, 16015420), (10, 12812336), (16, 8007710), (20, 6406168), (32, 4003855), (40, 3203084), (41, 3124960), (80, 1601542), (82, 1562480), (160, 800771), (164, 781240), (205, 624992), (328, 390620), (410, 312496), (656, 195310), (820, 156248), (1312, 97655), (1640, 78124), (3280, 39062), (6560, 19531)]