19882980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1$

素因数の和:350

約数の個数: 144

約数和(自身を含む): 67420080

約数和(自身を除く): 47537100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 29, 30, 36, 39, 45, 52, 58, 60, 65, 78, 87, 90, 116, 117, 130, 145, 156, 174, 180, 195, 234, 260, 261, 290, 293, 348, 377, 390, 435, 468, 522, 580, 585, 586, 754, 780, 870, 879, 1044, 1131, 1170, 1172, 1305, 1465, 1508, 1740, 1758, 1885, 2262, 2340, 2610, 2637, 2930, 3393, 3516, 3770, 3809, 4395, 4524, 5220, 5274, 5655, 5860, 6786, 7540, 7618, 8497, 8790, 10548, 11310, 11427, 13185, 13572, 15236, 16965, 16994, 17580, 19045, 22620, 22854, 25491, 26370, 33930, 33988, 34281, 38090, 42485, 45708, 50982, 52740, 57135, 67860, 68562, 76180, 76473, 84970, 101964, 110461, 114270, 127455, 137124, 152946, 169940, 171405, 220922, 228540, 254910, 305892, 331383, 342810, 382365, 441844, 509820, 552305, 662766, 685620, 764730, 994149, 1104610, 1325532, 1529460, 1656915, 1988298, 2209220, 3313830, 3976596, 4970745, 6627660, 9941490, 19882980]

約数ペア:

[(1, 19882980), (2, 9941490), (3, 6627660), (4, 4970745), (5, 3976596), (6, 3313830), (9, 2209220), (10, 1988298), (12, 1656915), (13, 1529460), (15, 1325532), (18, 1104610), (20, 994149), (26, 764730), (29, 685620), (30, 662766), (36, 552305), (39, 509820), (45, 441844), (52, 382365), (58, 342810), (60, 331383), (65, 305892), (78, 254910), (87, 228540), (90, 220922), (116, 171405), (117, 169940), (130, 152946), (145, 137124), (156, 127455), (174, 114270), (180, 110461), (195, 101964), (234, 84970), (260, 76473), (261, 76180), (290, 68562), (293, 67860), (348, 57135), (377, 52740), (390, 50982), (435, 45708), (468, 42485), (522, 38090), (580, 34281), (585, 33988), (586, 33930), (754, 26370), (780, 25491), (870, 22854), (879, 22620), (1044, 19045), (1131, 17580), (1170, 16994), (1172, 16965), (1305, 15236), (1465, 13572), (1508, 13185), (1740, 11427), (1758, 11310), (1885, 10548), (2262, 8790), (2340, 8497), (2610, 7618), (2637, 7540), (2930, 6786), (3393, 5860), (3516, 5655), (3770, 5274), (3809, 5220), (4395, 4524)]