28475460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:354

約数の個数: 144

約数和(自身を含む): 95519424

約数和(自身を除く): 67043964

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 43, 45, 52, 60, 65, 78, 86, 90, 117, 129, 130, 156, 172, 180, 195, 215, 234, 258, 260, 283, 387, 390, 430, 468, 516, 559, 566, 585, 645, 774, 780, 849, 860, 1118, 1132, 1170, 1290, 1415, 1548, 1677, 1698, 1935, 2236, 2340, 2547, 2580, 2795, 2830, 3354, 3396, 3679, 3870, 4245, 5031, 5094, 5590, 5660, 6708, 7358, 7740, 8385, 8490, 10062, 10188, 11037, 11180, 12169, 12735, 14716, 16770, 16980, 18395, 20124, 22074, 24338, 25155, 25470, 33111, 33540, 36507, 36790, 44148, 48676, 50310, 50940, 55185, 60845, 66222, 73014, 73580, 100620, 109521, 110370, 121690, 132444, 146028, 158197, 165555, 182535, 219042, 220740, 243380, 316394, 331110, 365070, 438084, 474591, 547605, 632788, 662220, 730140, 790985, 949182, 1095210, 1423773, 1581970, 1898364, 2190420, 2372955, 2847546, 3163940, 4745910, 5695092, 7118865, 9491820, 14237730, 28475460]

約数ペア:

[(1, 28475460), (2, 14237730), (3, 9491820), (4, 7118865), (5, 5695092), (6, 4745910), (9, 3163940), (10, 2847546), (12, 2372955), (13, 2190420), (15, 1898364), (18, 1581970), (20, 1423773), (26, 1095210), (30, 949182), (36, 790985), (39, 730140), (43, 662220), (45, 632788), (52, 547605), (60, 474591), (65, 438084), (78, 365070), (86, 331110), (90, 316394), (117, 243380), (129, 220740), (130, 219042), (156, 182535), (172, 165555), (180, 158197), (195, 146028), (215, 132444), (234, 121690), (258, 110370), (260, 109521), (283, 100620), (387, 73580), (390, 73014), (430, 66222), (468, 60845), (516, 55185), (559, 50940), (566, 50310), (585, 48676), (645, 44148), (774, 36790), (780, 36507), (849, 33540), (860, 33111), (1118, 25470), (1132, 25155), (1170, 24338), (1290, 22074), (1415, 20124), (1548, 18395), (1677, 16980), (1698, 16770), (1935, 14716), (2236, 12735), (2340, 12169), (2547, 11180), (2580, 11037), (2795, 10188), (2830, 10062), (3354, 8490), (3396, 8385), (3679, 7740), (3870, 7358), (4245, 6708), (5031, 5660), (5094, 5590)]