18425680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2531}}^1$

素因数の和:2564

約数の個数: 80

約数和(自身を含む): 52746624

約数和(自身を除く): 34320944

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 2531, 3640, 5062, 7280, 10124, 12655, 17717, 20248, 25310, 32903, 35434, 40496, 50620, 65806, 70868, 88585, 101240, 131612, 141736, 164515, 177170, 202480, 230321, 263224, 283472, 329030, 354340, 460642, 526448, 658060, 708680, 921284, 1151605, 1316120, 1417360, 1842568, 2303210, 2632240, 3685136, 4606420, 9212840, 18425680]

約数ペア:

[(1, 18425680), (2, 9212840), (4, 4606420), (5, 3685136), (7, 2632240), (8, 2303210), (10, 1842568), (13, 1417360), (14, 1316120), (16, 1151605), (20, 921284), (26, 708680), (28, 658060), (35, 526448), (40, 460642), (52, 354340), (56, 329030), (65, 283472), (70, 263224), (80, 230321), (91, 202480), (104, 177170), (112, 164515), (130, 141736), (140, 131612), (182, 101240), (208, 88585), (260, 70868), (280, 65806), (364, 50620), (455, 40496), (520, 35434), (560, 32903), (728, 25310), (910, 20248), (1040, 17717), (1456, 12655), (1820, 10124), (2531, 7280), (3640, 5062)]