64679020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2129}}^1$

素因数の和:2183

約数の個数: 72

約数和(自身を含む): 163175040

約数和(自身を除く): 98496020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 620, 868, 980, 1085, 1519, 2129, 2170, 3038, 4258, 4340, 6076, 7595, 8516, 10645, 14903, 15190, 21290, 29806, 30380, 42580, 59612, 65999, 74515, 104321, 131998, 149030, 208642, 263996, 298060, 329995, 417284, 461993, 521605, 659990, 923986, 1043210, 1319980, 1847972, 2086420, 2309965, 3233951, 4619930, 6467902, 9239860, 12935804, 16169755, 32339510, 64679020]

約数ペア:

[(1, 64679020), (2, 32339510), (4, 16169755), (5, 12935804), (7, 9239860), (10, 6467902), (14, 4619930), (20, 3233951), (28, 2309965), (31, 2086420), (35, 1847972), (49, 1319980), (62, 1043210), (70, 923986), (98, 659990), (124, 521605), (140, 461993), (155, 417284), (196, 329995), (217, 298060), (245, 263996), (310, 208642), (434, 149030), (490, 131998), (620, 104321), (868, 74515), (980, 65999), (1085, 59612), (1519, 42580), (2129, 30380), (2170, 29806), (3038, 21290), (4258, 15190), (4340, 14903), (6076, 10645), (7595, 8516)]