31235880

素因数分解:

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

素因数の和:20050

約数の個数: 64

約数和(自身を含む): 100920960

約数和(自身を除く): 69685080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 20023, 40046, 60069, 80092, 100115, 120138, 160184, 200230, 240276, 260299, 300345, 400460, 480552, 520598, 600690, 780897, 800920, 1041196, 1201380, 1301495, 1561794, 2082392, 2402760, 2602990, 3123588, 3904485, 5205980, 6247176, 7808970, 10411960, 15617940, 31235880]

約数ペア:

[(1, 31235880), (2, 15617940), (3, 10411960), (4, 7808970), (5, 6247176), (6, 5205980), (8, 3904485), (10, 3123588), (12, 2602990), (13, 2402760), (15, 2082392), (20, 1561794), (24, 1301495), (26, 1201380), (30, 1041196), (39, 800920), (40, 780897), (52, 600690), (60, 520598), (65, 480552), (78, 400460), (104, 300345), (120, 260299), (130, 240276), (156, 200230), (195, 160184), (260, 120138), (312, 100115), (390, 80092), (520, 60069), (780, 40046), (1560, 20023)]