12729220

素因数分解:

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

素因数の和:473

約数の個数: 72

約数和(自身を含む): 32175360

約数和(自身を除く): 19446140

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, 419, 434, 490, 620, 838, 868, 980, 1085, 1519, 1676, 2095, 2170, 2933, 3038, 4190, 4340, 5866, 6076, 7595, 8380, 11732, 12989, 14665, 15190, 20531, 25978, 29330, 30380, 41062, 51956, 58660, 64945, 82124, 90923, 102655, 129890, 181846, 205310, 259780, 363692, 410620, 454615, 636461, 909230, 1272922, 1818460, 2545844, 3182305, 6364610, 12729220]

約数ペア:

[(1, 12729220), (2, 6364610), (4, 3182305), (5, 2545844), (7, 1818460), (10, 1272922), (14, 909230), (20, 636461), (28, 454615), (31, 410620), (35, 363692), (49, 259780), (62, 205310), (70, 181846), (98, 129890), (124, 102655), (140, 90923), (155, 82124), (196, 64945), (217, 58660), (245, 51956), (310, 41062), (419, 30380), (434, 29330), (490, 25978), (620, 20531), (838, 15190), (868, 14665), (980, 12989), (1085, 11732), (1519, 8380), (1676, 7595), (2095, 6076), (2170, 5866), (2933, 4340), (3038, 4190)]