281021200

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:353

約数の個数: 120

約数和(自身を含む): 706311936

約数和(自身を除く): 425290736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 131, 155, 173, 200, 248, 262, 310, 346, 400, 496, 524, 620, 655, 692, 775, 865, 1048, 1240, 1310, 1384, 1550, 1730, 2096, 2480, 2620, 2768, 3100, 3275, 3460, 4061, 4325, 5240, 5363, 6200, 6550, 6920, 8122, 8650, 10480, 10726, 12400, 13100, 13840, 16244, 17300, 20305, 21452, 22663, 26200, 26815, 32488, 34600, 40610, 42904, 45326, 52400, 53630, 64976, 69200, 81220, 85808, 90652, 101525, 107260, 113315, 134075, 162440, 181304, 203050, 214520, 226630, 268150, 324880, 362608, 406100, 429040, 453260, 536300, 566575, 702553, 812200, 906520, 1072600, 1133150, 1405106, 1624400, 1813040, 2145200, 2266300, 2810212, 3512765, 4532600, 5620424, 7025530, 9065200, 11240848, 14051060, 17563825, 28102120, 35127650, 56204240, 70255300, 140510600, 281021200]

約数ペア:

[(1, 281021200), (2, 140510600), (4, 70255300), (5, 56204240), (8, 35127650), (10, 28102120), (16, 17563825), (20, 14051060), (25, 11240848), (31, 9065200), (40, 7025530), (50, 5620424), (62, 4532600), (80, 3512765), (100, 2810212), (124, 2266300), (131, 2145200), (155, 1813040), (173, 1624400), (200, 1405106), (248, 1133150), (262, 1072600), (310, 906520), (346, 812200), (400, 702553), (496, 566575), (524, 536300), (620, 453260), (655, 429040), (692, 406100), (775, 362608), (865, 324880), (1048, 268150), (1240, 226630), (1310, 214520), (1384, 203050), (1550, 181304), (1730, 162440), (2096, 134075), (2480, 113315), (2620, 107260), (2768, 101525), (3100, 90652), (3275, 85808), (3460, 81220), (4061, 69200), (4325, 64976), (5240, 53630), (5363, 52400), (6200, 45326), (6550, 42904), (6920, 40610), (8122, 34600), (8650, 32488), (10480, 26815), (10726, 26200), (12400, 22663), (13100, 21452), (13840, 20305), (16244, 17300)]