20450220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:144

約数の個数: 192

約数和(自身を含む): 71608320

約数和(自身を除く): 51158100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 29, 30, 35, 42, 46, 58, 60, 69, 70, 73, 84, 87, 92, 105, 115, 116, 138, 140, 145, 146, 161, 174, 203, 210, 219, 230, 276, 290, 292, 322, 345, 348, 365, 406, 420, 435, 438, 460, 483, 511, 580, 609, 644, 667, 690, 730, 805, 812, 870, 876, 966, 1015, 1022, 1095, 1218, 1334, 1380, 1460, 1533, 1610, 1679, 1740, 1932, 2001, 2030, 2044, 2117, 2190, 2415, 2436, 2555, 2668, 3045, 3066, 3220, 3335, 3358, 4002, 4060, 4234, 4380, 4669, 4830, 5037, 5110, 6090, 6132, 6351, 6670, 6716, 7665, 8004, 8395, 8468, 9338, 9660, 10005, 10074, 10220, 10585, 11753, 12180, 12702, 13340, 14007, 14819, 15330, 16790, 18676, 20010, 20148, 21170, 23345, 23506, 25185, 25404, 28014, 29638, 30660, 31755, 33580, 35259, 40020, 42340, 44457, 46690, 47012, 48691, 50370, 56028, 58765, 59276, 63510, 70035, 70518, 74095, 88914, 93380, 97382, 100740, 117530, 127020, 140070, 141036, 146073, 148190, 176295, 177828, 194764, 222285, 235060, 243455, 280140, 292146, 296380, 340837, 352590, 444570, 486910, 584292, 681674, 705180, 730365, 889140, 973820, 1022511, 1363348, 1460730, 1704185, 2045022, 2921460, 3408370, 4090044, 5112555, 6816740, 10225110, 20450220]

約数ペア:

[(1, 20450220), (2, 10225110), (3, 6816740), (4, 5112555), (5, 4090044), (6, 3408370), (7, 2921460), (10, 2045022), (12, 1704185), (14, 1460730), (15, 1363348), (20, 1022511), (21, 973820), (23, 889140), (28, 730365), (29, 705180), (30, 681674), (35, 584292), (42, 486910), (46, 444570), (58, 352590), (60, 340837), (69, 296380), (70, 292146), (73, 280140), (84, 243455), (87, 235060), (92, 222285), (105, 194764), (115, 177828), (116, 176295), (138, 148190), (140, 146073), (145, 141036), (146, 140070), (161, 127020), (174, 117530), (203, 100740), (210, 97382), (219, 93380), (230, 88914), (276, 74095), (290, 70518), (292, 70035), (322, 63510), (345, 59276), (348, 58765), (365, 56028), (406, 50370), (420, 48691), (435, 47012), (438, 46690), (460, 44457), (483, 42340), (511, 40020), (580, 35259), (609, 33580), (644, 31755), (667, 30660), (690, 29638), (730, 28014), (805, 25404), (812, 25185), (870, 23506), (876, 23345), (966, 21170), (1015, 20148), (1022, 20010), (1095, 18676), (1218, 16790), (1334, 15330), (1380, 14819), (1460, 14007), (1533, 13340), (1610, 12702), (1679, 12180), (1740, 11753), (1932, 10585), (2001, 10220), (2030, 10074), (2044, 10005), (2117, 9660), (2190, 9338), (2415, 8468), (2436, 8395), (2555, 8004), (2668, 7665), (3045, 6716), (3066, 6670), (3220, 6351), (3335, 6132), (3358, 6090), (4002, 5110), (4060, 5037), (4234, 4830), (4380, 4669)]