25917520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:125

約数の個数: 120

約数和(自身を含む): 68522400

約数和(自身を除く): 42604880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 59, 68, 76, 80, 85, 95, 118, 136, 152, 170, 190, 236, 272, 289, 295, 304, 323, 340, 380, 472, 578, 590, 646, 680, 760, 944, 1003, 1121, 1156, 1180, 1292, 1360, 1445, 1520, 1615, 2006, 2242, 2312, 2360, 2584, 2890, 3230, 4012, 4484, 4624, 4720, 5015, 5168, 5491, 5605, 5780, 6460, 8024, 8968, 10030, 10982, 11210, 11560, 12920, 16048, 17051, 17936, 19057, 20060, 21964, 22420, 23120, 25840, 27455, 34102, 38114, 40120, 43928, 44840, 54910, 68204, 76228, 80240, 85255, 87856, 89680, 95285, 109820, 136408, 152456, 170510, 190570, 219640, 272816, 304912, 323969, 341020, 381140, 439280, 647938, 682040, 762280, 1295876, 1364080, 1524560, 1619845, 2591752, 3239690, 5183504, 6479380, 12958760, 25917520]

約数ペア:

[(1, 25917520), (2, 12958760), (4, 6479380), (5, 5183504), (8, 3239690), (10, 2591752), (16, 1619845), (17, 1524560), (19, 1364080), (20, 1295876), (34, 762280), (38, 682040), (40, 647938), (59, 439280), (68, 381140), (76, 341020), (80, 323969), (85, 304912), (95, 272816), (118, 219640), (136, 190570), (152, 170510), (170, 152456), (190, 136408), (236, 109820), (272, 95285), (289, 89680), (295, 87856), (304, 85255), (323, 80240), (340, 76228), (380, 68204), (472, 54910), (578, 44840), (590, 43928), (646, 40120), (680, 38114), (760, 34102), (944, 27455), (1003, 25840), (1121, 23120), (1156, 22420), (1180, 21964), (1292, 20060), (1360, 19057), (1445, 17936), (1520, 17051), (1615, 16048), (2006, 12920), (2242, 11560), (2312, 11210), (2360, 10982), (2584, 10030), (2890, 8968), (3230, 8024), (4012, 6460), (4484, 5780), (4624, 5605), (4720, 5491), (5015, 5168)]