72400020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15671}}^1$

素因数の和:15701

約数の個数: 96

約数和(自身を含む): 252758016

約数和(自身を除く): 180357996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4620, 15671, 31342, 47013, 62684, 78355, 94026, 109697, 156710, 172381, 188052, 219394, 235065, 313420, 329091, 344762, 438788, 470130, 517143, 548485, 658182, 689524, 861905, 940260, 1034286, 1096970, 1206667, 1316364, 1645455, 1723810, 2068572, 2193940, 2413334, 2585715, 3290910, 3447620, 3620001, 4826668, 5171430, 6033335, 6581820, 7240002, 10342860, 12066670, 14480004, 18100005, 24133340, 36200010, 72400020]

約数ペア:

[(1, 72400020), (2, 36200010), (3, 24133340), (4, 18100005), (5, 14480004), (6, 12066670), (7, 10342860), (10, 7240002), (11, 6581820), (12, 6033335), (14, 5171430), (15, 4826668), (20, 3620001), (21, 3447620), (22, 3290910), (28, 2585715), (30, 2413334), (33, 2193940), (35, 2068572), (42, 1723810), (44, 1645455), (55, 1316364), (60, 1206667), (66, 1096970), (70, 1034286), (77, 940260), (84, 861905), (105, 689524), (110, 658182), (132, 548485), (140, 517143), (154, 470130), (165, 438788), (210, 344762), (220, 329091), (231, 313420), (308, 235065), (330, 219394), (385, 188052), (420, 172381), (462, 156710), (660, 109697), (770, 94026), (924, 78355), (1155, 62684), (1540, 47013), (2310, 31342), (4620, 15671)]