645949504

素因数分解:

$2^6\times {\mathrm{79}}^1\times {\mathrm{251}}^1\times {\mathrm{509}}^1$

素因数の和:851

約数の個数: 56

約数和(自身を含む): 1305763200

約数和(自身を除く): 659813696

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 158, 251, 316, 502, 509, 632, 1004, 1018, 1264, 2008, 2036, 2528, 4016, 4072, 5056, 8032, 8144, 16064, 16288, 19829, 32576, 39658, 40211, 79316, 80422, 127759, 158632, 160844, 255518, 317264, 321688, 511036, 634528, 643376, 1022072, 1269056, 1286752, 2044144, 2573504, 4088288, 8176576, 10092961, 20185922, 40371844, 80743688, 161487376, 322974752, 645949504]

約数ペア:

[(1, 645949504), (2, 322974752), (4, 161487376), (8, 80743688), (16, 40371844), (32, 20185922), (64, 10092961), (79, 8176576), (158, 4088288), (251, 2573504), (316, 2044144), (502, 1286752), (509, 1269056), (632, 1022072), (1004, 643376), (1018, 634528), (1264, 511036), (2008, 321688), (2036, 317264), (2528, 255518), (4016, 160844), (4072, 158632), (5056, 127759), (8032, 80422), (8144, 79316), (16064, 40211), (16288, 39658), (19829, 32576)]