11819990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:477

約数の個数: 64

約数和(自身を含む): 27095040

約数和(自身を除く): 15275050

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 31, 35, 62, 65, 70, 91, 130, 155, 182, 217, 310, 403, 419, 434, 455, 806, 838, 910, 1085, 2015, 2095, 2170, 2821, 2933, 4030, 4190, 5447, 5642, 5866, 10894, 12989, 14105, 14665, 25978, 27235, 28210, 29330, 38129, 54470, 64945, 76258, 90923, 129890, 168857, 181846, 190645, 337714, 381290, 454615, 844285, 909230, 1181999, 1688570, 2363998, 5909995, 11819990]

約数ペア:

[(1, 11819990), (2, 5909995), (5, 2363998), (7, 1688570), (10, 1181999), (13, 909230), (14, 844285), (26, 454615), (31, 381290), (35, 337714), (62, 190645), (65, 181846), (70, 168857), (91, 129890), (130, 90923), (155, 76258), (182, 64945), (217, 54470), (310, 38129), (403, 29330), (419, 28210), (434, 27235), (455, 25978), (806, 14665), (838, 14105), (910, 12989), (1085, 10894), (2015, 5866), (2095, 5642), (2170, 5447), (2821, 4190), (2933, 4030)]