25989355

素因数分解:

$5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 38676096

約数和(自身を除く): 12686741

約数列:

[1, 5, 7, 35, 37, 47, 49, 61, 185, 235, 245, 259, 305, 329, 427, 1295, 1645, 1739, 1813, 2135, 2257, 2303, 2867, 2989, 8695, 9065, 11285, 11515, 12173, 14335, 14945, 15799, 20069, 60865, 78995, 85211, 100345, 106079, 110593, 140483, 426055, 530395, 552965, 702415, 742553, 3712765, 5197871, 25989355]

約数ペア:

[(1, 25989355), (5, 5197871), (7, 3712765), (35, 742553), (37, 702415), (47, 552965), (49, 530395), (61, 426055), (185, 140483), (235, 110593), (245, 106079), (259, 100345), (305, 85211), (329, 78995), (427, 60865), (1295, 20069), (1645, 15799), (1739, 14945), (1813, 14335), (2135, 12173), (2257, 11515), (2303, 11285), (2867, 9065), (2989, 8695)]