81479580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14923}}^1$

素因数の和:14955

約数の個数: 96

約数和(自身を含む): 280809984

約数和(自身を除く): 199330404

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 14923, 29846, 44769, 59692, 74615, 89538, 104461, 149230, 179076, 193999, 208922, 223845, 298460, 313383, 387998, 417844, 447690, 522305, 581997, 626766, 775996, 895380, 969995, 1044610, 1163994, 1253532, 1357993, 1566915, 1939990, 2089220, 2327988, 2715986, 2909985, 3133830, 3879980, 4073979, 5431972, 5819970, 6267660, 6789965, 8147958, 11639940, 13579930, 16295916, 20369895, 27159860, 40739790, 81479580]

約数ペア:

[(1, 81479580), (2, 40739790), (3, 27159860), (4, 20369895), (5, 16295916), (6, 13579930), (7, 11639940), (10, 8147958), (12, 6789965), (13, 6267660), (14, 5819970), (15, 5431972), (20, 4073979), (21, 3879980), (26, 3133830), (28, 2909985), (30, 2715986), (35, 2327988), (39, 2089220), (42, 1939990), (52, 1566915), (60, 1357993), (65, 1253532), (70, 1163994), (78, 1044610), (84, 969995), (91, 895380), (105, 775996), (130, 626766), (140, 581997), (156, 522305), (182, 447690), (195, 417844), (210, 387998), (260, 313383), (273, 298460), (364, 223845), (390, 208922), (420, 193999), (455, 179076), (546, 149230), (780, 104461), (910, 89538), (1092, 74615), (1365, 59692), (1820, 44769), (2730, 29846), (5460, 14923)]