28446800

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^2\times {\mathrm{197}}^1$

素因数の和:253

約数の個数: 90

約数和(自身を含む): 72495918

約数和(自身を除く): 44049118

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 197, 200, 304, 361, 380, 394, 400, 475, 722, 760, 788, 950, 985, 1444, 1520, 1576, 1805, 1900, 1970, 2888, 3152, 3610, 3743, 3800, 3940, 4925, 5776, 7220, 7486, 7600, 7880, 9025, 9850, 14440, 14972, 15760, 18050, 18715, 19700, 28880, 29944, 36100, 37430, 39400, 59888, 71117, 72200, 74860, 78800, 93575, 142234, 144400, 149720, 187150, 284468, 299440, 355585, 374300, 568936, 711170, 748600, 1137872, 1422340, 1497200, 1777925, 2844680, 3555850, 5689360, 7111700, 14223400, 28446800]

約数ペア:

[(1, 28446800), (2, 14223400), (4, 7111700), (5, 5689360), (8, 3555850), (10, 2844680), (16, 1777925), (19, 1497200), (20, 1422340), (25, 1137872), (38, 748600), (40, 711170), (50, 568936), (76, 374300), (80, 355585), (95, 299440), (100, 284468), (152, 187150), (190, 149720), (197, 144400), (200, 142234), (304, 93575), (361, 78800), (380, 74860), (394, 72200), (400, 71117), (475, 59888), (722, 39400), (760, 37430), (788, 36100), (950, 29944), (985, 28880), (1444, 19700), (1520, 18715), (1576, 18050), (1805, 15760), (1900, 14972), (1970, 14440), (2888, 9850), (3152, 9025), (3610, 7880), (3743, 7600), (3800, 7486), (3940, 7220), (4925, 5776)]