399018560

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1789}}^1$

素因数の和:1864

約数の個数: 112

約数和(自身を含む): 1031168880

約数和(自身を除く): 632150320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 41, 64, 68, 80, 82, 85, 136, 160, 164, 170, 205, 272, 320, 328, 340, 410, 544, 656, 680, 697, 820, 1088, 1312, 1360, 1394, 1640, 1789, 2624, 2720, 2788, 3280, 3485, 3578, 5440, 5576, 6560, 6970, 7156, 8945, 11152, 13120, 13940, 14312, 17890, 22304, 27880, 28624, 30413, 35780, 44608, 55760, 57248, 60826, 71560, 73349, 111520, 114496, 121652, 143120, 146698, 152065, 223040, 243304, 286240, 293396, 304130, 366745, 486608, 572480, 586792, 608260, 733490, 973216, 1173584, 1216520, 1246933, 1466980, 1946432, 2347168, 2433040, 2493866, 2933960, 4694336, 4866080, 4987732, 5867920, 6234665, 9732160, 9975464, 11735840, 12469330, 19950928, 23471680, 24938660, 39901856, 49877320, 79803712, 99754640, 199509280, 399018560]

約数ペア:

[(1, 399018560), (2, 199509280), (4, 99754640), (5, 79803712), (8, 49877320), (10, 39901856), (16, 24938660), (17, 23471680), (20, 19950928), (32, 12469330), (34, 11735840), (40, 9975464), (41, 9732160), (64, 6234665), (68, 5867920), (80, 4987732), (82, 4866080), (85, 4694336), (136, 2933960), (160, 2493866), (164, 2433040), (170, 2347168), (205, 1946432), (272, 1466980), (320, 1246933), (328, 1216520), (340, 1173584), (410, 973216), (544, 733490), (656, 608260), (680, 586792), (697, 572480), (820, 486608), (1088, 366745), (1312, 304130), (1360, 293396), (1394, 286240), (1640, 243304), (1789, 223040), (2624, 152065), (2720, 146698), (2788, 143120), (3280, 121652), (3485, 114496), (3578, 111520), (5440, 73349), (5576, 71560), (6560, 60826), (6970, 57248), (7156, 55760), (8945, 44608), (11152, 35780), (13120, 30413), (13940, 28624), (14312, 27880), (17890, 22304)]