78350020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2579}}^1$

素因数の和:2633

約数の個数: 72

約数和(自身を含む): 197648640

約数和(自身を除く): 119298620

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, 2170, 2579, 3038, 4340, 5158, 6076, 7595, 10316, 12895, 15190, 18053, 25790, 30380, 36106, 51580, 72212, 79949, 90265, 126371, 159898, 180530, 252742, 319796, 361060, 399745, 505484, 559643, 631855, 799490, 1119286, 1263710, 1598980, 2238572, 2527420, 2798215, 3917501, 5596430, 7835002, 11192860, 15670004, 19587505, 39175010, 78350020]

約数ペア:

[(1, 78350020), (2, 39175010), (4, 19587505), (5, 15670004), (7, 11192860), (10, 7835002), (14, 5596430), (20, 3917501), (28, 2798215), (31, 2527420), (35, 2238572), (49, 1598980), (62, 1263710), (70, 1119286), (98, 799490), (124, 631855), (140, 559643), (155, 505484), (196, 399745), (217, 361060), (245, 319796), (310, 252742), (434, 180530), (490, 159898), (620, 126371), (868, 90265), (980, 79949), (1085, 72212), (1519, 51580), (2170, 36106), (2579, 30380), (3038, 25790), (4340, 18053), (5158, 15190), (6076, 12895), (7595, 10316)]