20023380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:270

約数の個数: 144

約数和(自身を含む): 67267200

約数和(自身を除く): 47243820

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, 199, 215, 234, 258, 260, 387, 390, 398, 430, 468, 516, 559, 585, 597, 645, 774, 780, 796, 860, 995, 1118, 1170, 1194, 1290, 1548, 1677, 1791, 1935, 1990, 2236, 2340, 2388, 2580, 2587, 2795, 2985, 3354, 3582, 3870, 3980, 5031, 5174, 5590, 5970, 6708, 7164, 7740, 7761, 8385, 8557, 8955, 10062, 10348, 11180, 11940, 12935, 15522, 16770, 17114, 17910, 20124, 23283, 25155, 25671, 25870, 31044, 33540, 34228, 35820, 38805, 42785, 46566, 50310, 51342, 51740, 77013, 77610, 85570, 93132, 100620, 102684, 111241, 116415, 128355, 154026, 155220, 171140, 222482, 232830, 256710, 308052, 333723, 385065, 444964, 465660, 513420, 556205, 667446, 770130, 1001169, 1112410, 1334892, 1540260, 1668615, 2002338, 2224820, 3337230, 4004676, 5005845, 6674460, 10011690, 20023380]

約数ペア:

[(1, 20023380), (2, 10011690), (3, 6674460), (4, 5005845), (5, 4004676), (6, 3337230), (9, 2224820), (10, 2002338), (12, 1668615), (13, 1540260), (15, 1334892), (18, 1112410), (20, 1001169), (26, 770130), (30, 667446), (36, 556205), (39, 513420), (43, 465660), (45, 444964), (52, 385065), (60, 333723), (65, 308052), (78, 256710), (86, 232830), (90, 222482), (117, 171140), (129, 155220), (130, 154026), (156, 128355), (172, 116415), (180, 111241), (195, 102684), (199, 100620), (215, 93132), (234, 85570), (258, 77610), (260, 77013), (387, 51740), (390, 51342), (398, 50310), (430, 46566), (468, 42785), (516, 38805), (559, 35820), (585, 34228), (597, 33540), (645, 31044), (774, 25870), (780, 25671), (796, 25155), (860, 23283), (995, 20124), (1118, 17910), (1170, 17114), (1194, 16770), (1290, 15522), (1548, 12935), (1677, 11940), (1791, 11180), (1935, 10348), (1990, 10062), (2236, 8955), (2340, 8557), (2388, 8385), (2580, 7761), (2587, 7740), (2795, 7164), (2985, 6708), (3354, 5970), (3582, 5590), (3870, 5174), (3980, 5031)]