2018976680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{1427}}^1$

素因数の和:1639

約数の個数: 128

約数和(自身を含む): 5395783680

約数和(自身を除く): 3376807000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 163, 217, 248, 280, 310, 326, 434, 620, 652, 815, 868, 1085, 1141, 1240, 1304, 1427, 1630, 1736, 2170, 2282, 2854, 3260, 4340, 4564, 5053, 5705, 5708, 6520, 7135, 8680, 9128, 9989, 10106, 11410, 11416, 14270, 19978, 20212, 22820, 25265, 28540, 35371, 39956, 40424, 44237, 45640, 49945, 50530, 57080, 70742, 79912, 88474, 99890, 101060, 141484, 176855, 176948, 199780, 202120, 221185, 232601, 282968, 309659, 353710, 353896, 399560, 442370, 465202, 619318, 707420, 884740, 930404, 1163005, 1238636, 1414840, 1548295, 1628207, 1769480, 1860808, 2326010, 2477272, 3096590, 3256414, 4652020, 6193180, 6512828, 7210631, 8141035, 9304040, 12386360, 13025656, 14421262, 16282070, 28842524, 32564140, 36053155, 50474417, 57685048, 65128280, 72106310, 100948834, 144212620, 201897668, 252372085, 288425240, 403795336, 504744170, 1009488340, 2018976680]

約数ペア:

[(1, 2018976680), (2, 1009488340), (4, 504744170), (5, 403795336), (7, 288425240), (8, 252372085), (10, 201897668), (14, 144212620), (20, 100948834), (28, 72106310), (31, 65128280), (35, 57685048), (40, 50474417), (56, 36053155), (62, 32564140), (70, 28842524), (124, 16282070), (140, 14421262), (155, 13025656), (163, 12386360), (217, 9304040), (248, 8141035), (280, 7210631), (310, 6512828), (326, 6193180), (434, 4652020), (620, 3256414), (652, 3096590), (815, 2477272), (868, 2326010), (1085, 1860808), (1141, 1769480), (1240, 1628207), (1304, 1548295), (1427, 1414840), (1630, 1238636), (1736, 1163005), (2170, 930404), (2282, 884740), (2854, 707420), (3260, 619318), (4340, 465202), (4564, 442370), (5053, 399560), (5705, 353896), (5708, 353710), (6520, 309659), (7135, 282968), (8680, 232601), (9128, 221185), (9989, 202120), (10106, 199780), (11410, 176948), (11416, 176855), (14270, 141484), (19978, 101060), (20212, 99890), (22820, 88474), (25265, 79912), (28540, 70742), (35371, 57080), (39956, 50530), (40424, 49945), (44237, 45640)]