90418720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{607}}^1$

素因数の和:655

約数の個数: 144

約数和(自身を含む): 261999360

約数和(自身を除く): 171580640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 380, 392, 490, 532, 560, 607, 608, 665, 760, 784, 931, 980, 1064, 1120, 1214, 1330, 1520, 1568, 1862, 1960, 2128, 2428, 2660, 3035, 3040, 3724, 3920, 4249, 4256, 4655, 4856, 5320, 6070, 7448, 7840, 8498, 9310, 9712, 10640, 11533, 12140, 14896, 16996, 18620, 19424, 21245, 21280, 23066, 24280, 29743, 29792, 33992, 37240, 42490, 46132, 48560, 57665, 59486, 67984, 74480, 80731, 84980, 92264, 97120, 115330, 118972, 135968, 148715, 148960, 161462, 169960, 184528, 230660, 237944, 297430, 322924, 339920, 369056, 403655, 461320, 475888, 565117, 594860, 645848, 679840, 807310, 922640, 951776, 1130234, 1189720, 1291696, 1614620, 1845280, 2260468, 2379440, 2583392, 2825585, 3229240, 4520936, 4758880, 5651170, 6458480, 9041872, 11302340, 12916960, 18083744, 22604680, 45209360, 90418720]

約数ペア:

[(1, 90418720), (2, 45209360), (4, 22604680), (5, 18083744), (7, 12916960), (8, 11302340), (10, 9041872), (14, 6458480), (16, 5651170), (19, 4758880), (20, 4520936), (28, 3229240), (32, 2825585), (35, 2583392), (38, 2379440), (40, 2260468), (49, 1845280), (56, 1614620), (70, 1291696), (76, 1189720), (80, 1130234), (95, 951776), (98, 922640), (112, 807310), (133, 679840), (140, 645848), (152, 594860), (160, 565117), (190, 475888), (196, 461320), (224, 403655), (245, 369056), (266, 339920), (280, 322924), (304, 297430), (380, 237944), (392, 230660), (490, 184528), (532, 169960), (560, 161462), (607, 148960), (608, 148715), (665, 135968), (760, 118972), (784, 115330), (931, 97120), (980, 92264), (1064, 84980), (1120, 80731), (1214, 74480), (1330, 67984), (1520, 59486), (1568, 57665), (1862, 48560), (1960, 46132), (2128, 42490), (2428, 37240), (2660, 33992), (3035, 29792), (3040, 29743), (3724, 24280), (3920, 23066), (4249, 21280), (4256, 21245), (4655, 19424), (4856, 18620), (5320, 16996), (6070, 14896), (7448, 12140), (7840, 11533), (8498, 10640), (9310, 9712)]