905281468

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:292

約数の個数: 144

約数和(自身を含む): 2089968384

約数和(自身を除く): 1184686916

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 73, 91, 98, 124, 146, 157, 182, 196, 217, 292, 314, 364, 403, 434, 511, 628, 637, 806, 868, 949, 1022, 1099, 1274, 1519, 1612, 1898, 2041, 2044, 2198, 2263, 2548, 2821, 3038, 3577, 3796, 4082, 4396, 4526, 4867, 5642, 6076, 6643, 7154, 7693, 8164, 9052, 9734, 11284, 11461, 13286, 14287, 14308, 15386, 15841, 19468, 19747, 22922, 26572, 28574, 29419, 30772, 31682, 34069, 39494, 45844, 46501, 57148, 58838, 63271, 63364, 68138, 78988, 80227, 93002, 100009, 110887, 117676, 126542, 136276, 148993, 160454, 186004, 200018, 205933, 221774, 238483, 253084, 297986, 320908, 355291, 400036, 411866, 442897, 443548, 476966, 561589, 595972, 710582, 823732, 885794, 953932, 1042951, 1123178, 1421164, 1441531, 1771588, 2085902, 2246356, 2487037, 2883062, 3100279, 4171804, 4618783, 4974074, 5766124, 6200558, 7300657, 9237566, 9948148, 12401116, 14601314, 17409259, 18475132, 29202628, 32331481, 34818518, 64662962, 69637036, 129325924, 226320367, 452640734, 905281468]

約数ペア:

[(1, 905281468), (2, 452640734), (4, 226320367), (7, 129325924), (13, 69637036), (14, 64662962), (26, 34818518), (28, 32331481), (31, 29202628), (49, 18475132), (52, 17409259), (62, 14601314), (73, 12401116), (91, 9948148), (98, 9237566), (124, 7300657), (146, 6200558), (157, 5766124), (182, 4974074), (196, 4618783), (217, 4171804), (292, 3100279), (314, 2883062), (364, 2487037), (403, 2246356), (434, 2085902), (511, 1771588), (628, 1441531), (637, 1421164), (806, 1123178), (868, 1042951), (949, 953932), (1022, 885794), (1099, 823732), (1274, 710582), (1519, 595972), (1612, 561589), (1898, 476966), (2041, 443548), (2044, 442897), (2198, 411866), (2263, 400036), (2548, 355291), (2821, 320908), (3038, 297986), (3577, 253084), (3796, 238483), (4082, 221774), (4396, 205933), (4526, 200018), (4867, 186004), (5642, 160454), (6076, 148993), (6643, 136276), (7154, 126542), (7693, 117676), (8164, 110887), (9052, 100009), (9734, 93002), (11284, 80227), (11461, 78988), (13286, 68138), (14287, 63364), (14308, 63271), (15386, 58838), (15841, 57148), (19468, 46501), (19747, 45844), (22922, 39494), (26572, 34069), (28574, 31682), (29419, 30772)]