19812660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{293}}^1$

素因数の和:342

約数の個数: 144

約数和(自身を含む): 67568256

約数和(自身を除く): 47755596

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 49, 60, 69, 70, 84, 92, 98, 105, 115, 138, 140, 147, 161, 196, 210, 230, 245, 276, 293, 294, 322, 345, 420, 460, 483, 490, 586, 588, 644, 690, 735, 805, 879, 966, 980, 1127, 1172, 1380, 1465, 1470, 1610, 1758, 1932, 2051, 2254, 2415, 2930, 2940, 3220, 3381, 3516, 4102, 4395, 4508, 4830, 5635, 5860, 6153, 6739, 6762, 8204, 8790, 9660, 10255, 11270, 12306, 13478, 13524, 14357, 16905, 17580, 20217, 20510, 22540, 24612, 26956, 28714, 30765, 33695, 33810, 40434, 41020, 43071, 47173, 57428, 61530, 67390, 67620, 71785, 80868, 86142, 94346, 101085, 123060, 134780, 141519, 143570, 172284, 188692, 202170, 215355, 235865, 283038, 287140, 330211, 404340, 430710, 471730, 566076, 660422, 707595, 861420, 943460, 990633, 1320844, 1415190, 1651055, 1981266, 2830380, 3302110, 3962532, 4953165, 6604220, 9906330, 19812660]

約数ペア:

[(1, 19812660), (2, 9906330), (3, 6604220), (4, 4953165), (5, 3962532), (6, 3302110), (7, 2830380), (10, 1981266), (12, 1651055), (14, 1415190), (15, 1320844), (20, 990633), (21, 943460), (23, 861420), (28, 707595), (30, 660422), (35, 566076), (42, 471730), (46, 430710), (49, 404340), (60, 330211), (69, 287140), (70, 283038), (84, 235865), (92, 215355), (98, 202170), (105, 188692), (115, 172284), (138, 143570), (140, 141519), (147, 134780), (161, 123060), (196, 101085), (210, 94346), (230, 86142), (245, 80868), (276, 71785), (293, 67620), (294, 67390), (322, 61530), (345, 57428), (420, 47173), (460, 43071), (483, 41020), (490, 40434), (586, 33810), (588, 33695), (644, 30765), (690, 28714), (735, 26956), (805, 24612), (879, 22540), (966, 20510), (980, 20217), (1127, 17580), (1172, 16905), (1380, 14357), (1465, 13524), (1470, 13478), (1610, 12306), (1758, 11270), (1932, 10255), (2051, 9660), (2254, 8790), (2415, 8204), (2930, 6762), (2940, 6739), (3220, 6153), (3381, 5860), (3516, 5635), (4102, 4830), (4395, 4508)]