18675020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:391

約数の個数: 96

約数和(自身を含む): 49975296

約数和(自身を除く): 31300276

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 52, 62, 65, 70, 91, 124, 130, 140, 155, 182, 217, 260, 310, 331, 364, 403, 434, 455, 620, 662, 806, 868, 910, 1085, 1324, 1612, 1655, 1820, 2015, 2170, 2317, 2821, 3310, 4030, 4303, 4340, 4634, 5642, 6620, 8060, 8606, 9268, 10261, 11284, 11585, 14105, 17212, 20522, 21515, 23170, 28210, 30121, 41044, 43030, 46340, 51305, 56420, 60242, 71827, 86060, 102610, 120484, 133393, 143654, 150605, 205220, 266786, 287308, 301210, 359135, 533572, 602420, 666965, 718270, 933751, 1333930, 1436540, 1867502, 2667860, 3735004, 4668755, 9337510, 18675020]

約数ペア:

[(1, 18675020), (2, 9337510), (4, 4668755), (5, 3735004), (7, 2667860), (10, 1867502), (13, 1436540), (14, 1333930), (20, 933751), (26, 718270), (28, 666965), (31, 602420), (35, 533572), (52, 359135), (62, 301210), (65, 287308), (70, 266786), (91, 205220), (124, 150605), (130, 143654), (140, 133393), (155, 120484), (182, 102610), (217, 86060), (260, 71827), (310, 60242), (331, 56420), (364, 51305), (403, 46340), (434, 43030), (455, 41044), (620, 30121), (662, 28210), (806, 23170), (868, 21515), (910, 20522), (1085, 17212), (1324, 14105), (1612, 11585), (1655, 11284), (1820, 10261), (2015, 9268), (2170, 8606), (2317, 8060), (2821, 6620), (3310, 5642), (4030, 4634), (4303, 4340)]