28745600

素因数分解:

$2^7\times 5^2\times {\mathrm{13}}^1\times {\mathrm{691}}^1$

素因数の和:728

約数の個数: 96

約数和(自身を含む): 76583640

約数和(自身を除く): 47838040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 260, 320, 325, 400, 416, 520, 640, 650, 691, 800, 832, 1040, 1300, 1382, 1600, 1664, 2080, 2600, 2764, 3200, 3455, 4160, 5200, 5528, 6910, 8320, 8983, 10400, 11056, 13820, 17275, 17966, 20800, 22112, 27640, 34550, 35932, 41600, 44224, 44915, 55280, 69100, 71864, 88448, 89830, 110560, 138200, 143728, 179660, 221120, 224575, 276400, 287456, 359320, 442240, 449150, 552800, 574912, 718640, 898300, 1105600, 1149824, 1437280, 1796600, 2211200, 2874560, 3593200, 5749120, 7186400, 14372800, 28745600]

約数ペア:

[(1, 28745600), (2, 14372800), (4, 7186400), (5, 5749120), (8, 3593200), (10, 2874560), (13, 2211200), (16, 1796600), (20, 1437280), (25, 1149824), (26, 1105600), (32, 898300), (40, 718640), (50, 574912), (52, 552800), (64, 449150), (65, 442240), (80, 359320), (100, 287456), (104, 276400), (128, 224575), (130, 221120), (160, 179660), (200, 143728), (208, 138200), (260, 110560), (320, 89830), (325, 88448), (400, 71864), (416, 69100), (520, 55280), (640, 44915), (650, 44224), (691, 41600), (800, 35932), (832, 34550), (1040, 27640), (1300, 22112), (1382, 20800), (1600, 17966), (1664, 17275), (2080, 13820), (2600, 11056), (2764, 10400), (3200, 8983), (3455, 8320), (4160, 6910), (5200, 5528)]