20906340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{547}}^1$

素因数の和:586

約数の個数: 144

約数和(自身を含む): 73467072

約数和(自身を除く): 52560732

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 547, 588, 637, 735, 780, 910, 980, 1092, 1094, 1274, 1365, 1470, 1641, 1820, 1911, 2188, 2548, 2730, 2735, 2940, 3185, 3282, 3822, 3829, 5460, 5470, 6370, 6564, 7111, 7644, 7658, 8205, 9555, 10940, 11487, 12740, 14222, 15316, 16410, 19110, 19145, 21333, 22974, 26803, 28444, 32820, 35555, 38220, 38290, 42666, 45948, 49777, 53606, 57435, 71110, 76580, 80409, 85332, 99554, 106665, 107212, 114870, 134015, 142220, 149331, 160818, 199108, 213330, 229740, 248885, 268030, 298662, 321636, 348439, 402045, 426660, 497770, 536060, 597324, 696878, 746655, 804090, 995540, 1045317, 1393756, 1493310, 1608180, 1742195, 2090634, 2986620, 3484390, 4181268, 5226585, 6968780, 10453170, 20906340]

約数ペア:

[(1, 20906340), (2, 10453170), (3, 6968780), (4, 5226585), (5, 4181268), (6, 3484390), (7, 2986620), (10, 2090634), (12, 1742195), (13, 1608180), (14, 1493310), (15, 1393756), (20, 1045317), (21, 995540), (26, 804090), (28, 746655), (30, 696878), (35, 597324), (39, 536060), (42, 497770), (49, 426660), (52, 402045), (60, 348439), (65, 321636), (70, 298662), (78, 268030), (84, 248885), (91, 229740), (98, 213330), (105, 199108), (130, 160818), (140, 149331), (147, 142220), (156, 134015), (182, 114870), (195, 107212), (196, 106665), (210, 99554), (245, 85332), (260, 80409), (273, 76580), (294, 71110), (364, 57435), (390, 53606), (420, 49777), (455, 45948), (490, 42666), (546, 38290), (547, 38220), (588, 35555), (637, 32820), (735, 28444), (780, 26803), (910, 22974), (980, 21333), (1092, 19145), (1094, 19110), (1274, 16410), (1365, 15316), (1470, 14222), (1641, 12740), (1820, 11487), (1911, 10940), (2188, 9555), (2548, 8205), (2730, 7658), (2735, 7644), (2940, 7111), (3185, 6564), (3282, 6370), (3822, 5470), (3829, 5460)]