1878484580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{331}}^1\times {\mathrm{5791}}^1$

素因数の和:6145

約数の個数: 72

約数和(自身を含む): 4603527936

約数和(自身を除く): 2725043356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 331, 490, 662, 980, 1324, 1655, 2317, 3310, 4634, 5791, 6620, 9268, 11582, 11585, 16219, 23164, 23170, 28955, 32438, 40537, 46340, 57910, 64876, 81074, 81095, 115820, 162148, 162190, 202685, 283759, 324380, 405370, 567518, 810740, 1135036, 1418795, 1916821, 2837590, 3833642, 5675180, 7667284, 9584105, 13417747, 19168210, 26835494, 38336420, 53670988, 67088735, 93924229, 134177470, 187848458, 268354940, 375696916, 469621145, 939242290, 1878484580]

約数ペア:

[(1, 1878484580), (2, 939242290), (4, 469621145), (5, 375696916), (7, 268354940), (10, 187848458), (14, 134177470), (20, 93924229), (28, 67088735), (35, 53670988), (49, 38336420), (70, 26835494), (98, 19168210), (140, 13417747), (196, 9584105), (245, 7667284), (331, 5675180), (490, 3833642), (662, 2837590), (980, 1916821), (1324, 1418795), (1655, 1135036), (2317, 810740), (3310, 567518), (4634, 405370), (5791, 324380), (6620, 283759), (9268, 202685), (11582, 162190), (11585, 162148), (16219, 115820), (23164, 81095), (23170, 81074), (28955, 64876), (32438, 57910), (40537, 46340)]