1211490

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{641}}^1$

素因数の和:664

約数の個数: 64

約数和(自身を含む): 3697920

約数和(自身を除く): 2486430

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 641, 945, 1282, 1890, 1923, 3205, 3846, 4487, 5769, 6410, 8974, 9615, 11538, 13461, 17307, 19230, 22435, 26922, 28845, 34614, 40383, 44870, 57690, 67305, 80766, 86535, 121149, 134610, 173070, 201915, 242298, 403830, 605745, 1211490]

約数ペア:

[(1, 1211490), (2, 605745), (3, 403830), (5, 242298), (6, 201915), (7, 173070), (9, 134610), (10, 121149), (14, 86535), (15, 80766), (18, 67305), (21, 57690), (27, 44870), (30, 40383), (35, 34614), (42, 28845), (45, 26922), (54, 22435), (63, 19230), (70, 17307), (90, 13461), (105, 11538), (126, 9615), (135, 8974), (189, 6410), (210, 5769), (270, 4487), (315, 3846), (378, 3205), (630, 1923), (641, 1890), (945, 1282)]