15617940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20023}}^1$

素因数の和:20048

約数の個数: 48

約数和(自身を含む): 47096448

約数和(自身を除く): 31478508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 20023, 40046, 60069, 80092, 100115, 120138, 200230, 240276, 260299, 300345, 400460, 520598, 600690, 780897, 1041196, 1201380, 1301495, 1561794, 2602990, 3123588, 3904485, 5205980, 7808970, 15617940]

約数ペア:

[(1, 15617940), (2, 7808970), (3, 5205980), (4, 3904485), (5, 3123588), (6, 2602990), (10, 1561794), (12, 1301495), (13, 1201380), (15, 1041196), (20, 780897), (26, 600690), (30, 520598), (39, 400460), (52, 300345), (60, 260299), (65, 240276), (78, 200230), (130, 120138), (156, 100115), (195, 80092), (260, 60069), (390, 40046), (780, 20023)]