20057620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:241

約数の個数: 96

約数和(自身を含む): 50512896

約数和(自身を除く): 30455276

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 31, 34, 44, 55, 62, 68, 85, 110, 124, 155, 170, 173, 187, 220, 310, 340, 341, 346, 374, 527, 620, 682, 692, 748, 865, 935, 1054, 1364, 1705, 1730, 1870, 1903, 2108, 2635, 2941, 3410, 3460, 3740, 3806, 5270, 5363, 5797, 5882, 6820, 7612, 9515, 10540, 10726, 11594, 11764, 14705, 19030, 21452, 23188, 26815, 28985, 29410, 32351, 38060, 53630, 57970, 58820, 58993, 64702, 91171, 107260, 115940, 117986, 129404, 161755, 182342, 235972, 294965, 323510, 364684, 455855, 589930, 647020, 911710, 1002881, 1179860, 1823420, 2005762, 4011524, 5014405, 10028810, 20057620]

約数ペア:

[(1, 20057620), (2, 10028810), (4, 5014405), (5, 4011524), (10, 2005762), (11, 1823420), (17, 1179860), (20, 1002881), (22, 911710), (31, 647020), (34, 589930), (44, 455855), (55, 364684), (62, 323510), (68, 294965), (85, 235972), (110, 182342), (124, 161755), (155, 129404), (170, 117986), (173, 115940), (187, 107260), (220, 91171), (310, 64702), (340, 58993), (341, 58820), (346, 57970), (374, 53630), (527, 38060), (620, 32351), (682, 29410), (692, 28985), (748, 26815), (865, 23188), (935, 21452), (1054, 19030), (1364, 14705), (1705, 11764), (1730, 11594), (1870, 10726), (1903, 10540), (2108, 9515), (2635, 7612), (2941, 6820), (3410, 5882), (3460, 5797), (3740, 5363), (3806, 5270)]