15889120

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7639}}^1$

素因数の和:7667

約数の個数: 48

約数和(自身を含む): 40430880

約数和(自身を除く): 24541760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 7639, 15278, 30556, 38195, 61112, 76390, 99307, 122224, 152780, 198614, 244448, 305560, 397228, 496535, 611120, 794456, 993070, 1222240, 1588912, 1986140, 3177824, 3972280, 7944560, 15889120]

約数ペア:

[(1, 15889120), (2, 7944560), (4, 3972280), (5, 3177824), (8, 1986140), (10, 1588912), (13, 1222240), (16, 993070), (20, 794456), (26, 611120), (32, 496535), (40, 397228), (52, 305560), (65, 244448), (80, 198614), (104, 152780), (130, 122224), (160, 99307), (208, 76390), (260, 61112), (416, 38195), (520, 30556), (1040, 15278), (2080, 7639)]