19887071880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12748123}}^1$

素因数の和:12748150

約数の個数: 64

約数和(自身を含む): 64250544960

約数和(自身を除く): 44363473080

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, 12748123, 25496246, 38244369, 50992492, 63740615, 76488738, 101984984, 127481230, 152977476, 165725599, 191221845, 254962460, 305954952, 331451198, 382443690, 497176797, 509924920, 662902396, 764887380, 828627995, 994353594, 1325804792, 1529774760, 1657255990, 1988707188, 2485883985, 3314511980, 3977414376, 4971767970, 6629023960, 9943535940, 19887071880]

約数ペア:

[(1, 19887071880), (2, 9943535940), (3, 6629023960), (4, 4971767970), (5, 3977414376), (6, 3314511980), (8, 2485883985), (10, 1988707188), (12, 1657255990), (13, 1529774760), (15, 1325804792), (20, 994353594), (24, 828627995), (26, 764887380), (30, 662902396), (39, 509924920), (40, 497176797), (52, 382443690), (60, 331451198), (65, 305954952), (78, 254962460), (104, 191221845), (120, 165725599), (130, 152977476), (156, 127481230), (195, 101984984), (260, 76488738), (312, 63740615), (390, 50992492), (520, 38244369), (780, 25496246), (1560, 12748123)]