28596880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{887}}^1$

素因数の和:944

約数の個数: 80

約数和(自身を含む): 73995264

約数和(自身を除く): 45398384

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 887, 1040, 1240, 1612, 1774, 2015, 2480, 3224, 3548, 4030, 4435, 6448, 7096, 8060, 8870, 11531, 14192, 16120, 17740, 23062, 27497, 32240, 35480, 46124, 54994, 57655, 70960, 92248, 109988, 115310, 137485, 184496, 219976, 230620, 274970, 357461, 439952, 461240, 549940, 714922, 922480, 1099880, 1429844, 1787305, 2199760, 2859688, 3574610, 5719376, 7149220, 14298440, 28596880]

約数ペア:

[(1, 28596880), (2, 14298440), (4, 7149220), (5, 5719376), (8, 3574610), (10, 2859688), (13, 2199760), (16, 1787305), (20, 1429844), (26, 1099880), (31, 922480), (40, 714922), (52, 549940), (62, 461240), (65, 439952), (80, 357461), (104, 274970), (124, 230620), (130, 219976), (155, 184496), (208, 137485), (248, 115310), (260, 109988), (310, 92248), (403, 70960), (496, 57655), (520, 54994), (620, 46124), (806, 35480), (887, 32240), (1040, 27497), (1240, 23062), (1612, 17740), (1774, 16120), (2015, 14192), (2480, 11531), (3224, 8870), (3548, 8060), (4030, 7096), (4435, 6448)]