28399490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 62346240

約数和(自身を除く): 33946750

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 131, 133, 163, 190, 262, 266, 326, 655, 665, 815, 917, 1141, 1310, 1330, 1630, 1834, 2282, 2489, 3097, 4585, 4978, 5705, 6194, 9170, 11410, 12445, 15485, 17423, 21353, 21679, 24890, 30970, 34846, 42706, 43358, 87115, 106765, 108395, 149471, 174230, 213530, 216790, 298942, 405707, 747355, 811414, 1494710, 2028535, 2839949, 4057070, 5679898, 14199745, 28399490]

約数ペア:

[(1, 28399490), (2, 14199745), (5, 5679898), (7, 4057070), (10, 2839949), (14, 2028535), (19, 1494710), (35, 811414), (38, 747355), (70, 405707), (95, 298942), (131, 216790), (133, 213530), (163, 174230), (190, 149471), (262, 108395), (266, 106765), (326, 87115), (655, 43358), (665, 42706), (815, 34846), (917, 30970), (1141, 24890), (1310, 21679), (1330, 21353), (1630, 17423), (1834, 15485), (2282, 12445), (2489, 11410), (3097, 9170), (4585, 6194), (4978, 5705)]