79789840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4513}}^1$

素因数の和:4556

約数の個数: 80

約数和(自身を含む): 211580208

約数和(自身を除く): 131790368

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 2210, 3536, 4420, 4513, 8840, 9026, 17680, 18052, 22565, 36104, 45130, 58669, 72208, 76721, 90260, 117338, 153442, 180520, 234676, 293345, 306884, 361040, 383605, 469352, 586690, 613768, 767210, 938704, 997373, 1173380, 1227536, 1534420, 1994746, 2346760, 3068840, 3989492, 4693520, 4986865, 6137680, 7978984, 9973730, 15957968, 19947460, 39894920, 79789840]

約数ペア:

[(1, 79789840), (2, 39894920), (4, 19947460), (5, 15957968), (8, 9973730), (10, 7978984), (13, 6137680), (16, 4986865), (17, 4693520), (20, 3989492), (26, 3068840), (34, 2346760), (40, 1994746), (52, 1534420), (65, 1227536), (68, 1173380), (80, 997373), (85, 938704), (104, 767210), (130, 613768), (136, 586690), (170, 469352), (208, 383605), (221, 361040), (260, 306884), (272, 293345), (340, 234676), (442, 180520), (520, 153442), (680, 117338), (884, 90260), (1040, 76721), (1105, 72208), (1360, 58669), (1768, 45130), (2210, 36104), (3536, 22565), (4420, 18052), (4513, 17680), (8840, 9026)]