398665280

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2039}}^1$

素因数の和:2116

約数の個数: 112

約数和(自身を含む): 1044610560

約数和(自身を除く): 645945280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 47, 52, 64, 65, 80, 94, 104, 130, 160, 188, 208, 235, 260, 320, 376, 416, 470, 520, 611, 752, 832, 940, 1040, 1222, 1504, 1880, 2039, 2080, 2444, 3008, 3055, 3760, 4078, 4160, 4888, 6110, 7520, 8156, 9776, 10195, 12220, 15040, 16312, 19552, 20390, 24440, 26507, 32624, 39104, 40780, 48880, 53014, 65248, 81560, 95833, 97760, 106028, 130496, 132535, 163120, 191666, 195520, 212056, 265070, 326240, 383332, 424112, 479165, 530140, 652480, 766664, 848224, 958330, 1060280, 1245829, 1533328, 1696448, 1916660, 2120560, 2491658, 3066656, 3833320, 4241120, 4983316, 6133312, 6229145, 7666640, 8482240, 9966632, 12458290, 15333280, 19933264, 24916580, 30666560, 39866528, 49833160, 79733056, 99666320, 199332640, 398665280]

約数ペア:

[(1, 398665280), (2, 199332640), (4, 99666320), (5, 79733056), (8, 49833160), (10, 39866528), (13, 30666560), (16, 24916580), (20, 19933264), (26, 15333280), (32, 12458290), (40, 9966632), (47, 8482240), (52, 7666640), (64, 6229145), (65, 6133312), (80, 4983316), (94, 4241120), (104, 3833320), (130, 3066656), (160, 2491658), (188, 2120560), (208, 1916660), (235, 1696448), (260, 1533328), (320, 1245829), (376, 1060280), (416, 958330), (470, 848224), (520, 766664), (611, 652480), (752, 530140), (832, 479165), (940, 424112), (1040, 383332), (1222, 326240), (1504, 265070), (1880, 212056), (2039, 195520), (2080, 191666), (2444, 163120), (3008, 132535), (3055, 130496), (3760, 106028), (4078, 97760), (4160, 95833), (4888, 81560), (6110, 65248), (7520, 53014), (8156, 48880), (9776, 40780), (10195, 39104), (12220, 32624), (15040, 26507), (16312, 24440), (19552, 20390)]