201972890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1\times {\mathrm{379}}^1$

素因数の和:747

約数の個数: 64

約数和(自身を含む): 436008960

約数和(自身を除く): 234036070

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 331, 379, 662, 758, 805, 1610, 1655, 1895, 2317, 2653, 3310, 3790, 4634, 5306, 7613, 8717, 11585, 13265, 15226, 17434, 23170, 26530, 38065, 43585, 53291, 61019, 76130, 87170, 106582, 122038, 125449, 250898, 266455, 305095, 532910, 610190, 627245, 878143, 1254490, 1756286, 2885327, 4390715, 5770654, 8781430, 14426635, 20197289, 28853270, 40394578, 100986445, 201972890]

約数ペア:

[(1, 201972890), (2, 100986445), (5, 40394578), (7, 28853270), (10, 20197289), (14, 14426635), (23, 8781430), (35, 5770654), (46, 4390715), (70, 2885327), (115, 1756286), (161, 1254490), (230, 878143), (322, 627245), (331, 610190), (379, 532910), (662, 305095), (758, 266455), (805, 250898), (1610, 125449), (1655, 122038), (1895, 106582), (2317, 87170), (2653, 76130), (3310, 61019), (3790, 53291), (4634, 43585), (5306, 38065), (7613, 26530), (8717, 23170), (11585, 17434), (13265, 15226)]