128103680

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2441}}^1$

素因数の和:2503

約数の個数: 72

約数和(自身を含む): 314461224

約数和(自身を除く): 186357544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 640, 656, 820, 1280, 1312, 1640, 2441, 2624, 3280, 4882, 5248, 6560, 9764, 10496, 12205, 13120, 19528, 24410, 26240, 39056, 48820, 52480, 78112, 97640, 100081, 156224, 195280, 200162, 312448, 390560, 400324, 500405, 624896, 781120, 800648, 1000810, 1562240, 1601296, 2001620, 3124480, 3202592, 4003240, 6405184, 8006480, 12810368, 16012960, 25620736, 32025920, 64051840, 128103680]

約数ペア:

[(1, 128103680), (2, 64051840), (4, 32025920), (5, 25620736), (8, 16012960), (10, 12810368), (16, 8006480), (20, 6405184), (32, 4003240), (40, 3202592), (41, 3124480), (64, 2001620), (80, 1601296), (82, 1562240), (128, 1000810), (160, 800648), (164, 781120), (205, 624896), (256, 500405), (320, 400324), (328, 390560), (410, 312448), (640, 200162), (656, 195280), (820, 156224), (1280, 100081), (1312, 97640), (1640, 78112), (2441, 52480), (2624, 48820), (3280, 39056), (4882, 26240), (5248, 24410), (6560, 19528), (9764, 13120), (10496, 12205)]