1640392996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1\times {\mathrm{1951}}^1$

素因数の和:2260

約数の個数: 48

約数和(自身を含む): 3181635072

約数和(自身を除く): 1541242076

約数列:

[1, 2, 4, 11, 22, 44, 97, 194, 197, 388, 394, 788, 1067, 1951, 2134, 2167, 3902, 4268, 4334, 7804, 8668, 19109, 21461, 38218, 42922, 76436, 85844, 189247, 210199, 378494, 384347, 420398, 756988, 768694, 840796, 1537388, 2081717, 4163434, 4227817, 8326868, 8455634, 16911268, 37281659, 74563318, 149126636, 410098249, 820196498, 1640392996]

約数ペア:

[(1, 1640392996), (2, 820196498), (4, 410098249), (11, 149126636), (22, 74563318), (44, 37281659), (97, 16911268), (194, 8455634), (197, 8326868), (388, 4227817), (394, 4163434), (788, 2081717), (1067, 1537388), (1951, 840796), (2134, 768694), (2167, 756988), (3902, 420398), (4268, 384347), (4334, 378494), (7804, 210199), (8668, 189247), (19109, 85844), (21461, 76436), (38218, 42922)]