28201640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{619}}^1$

素因数の和:714

約数の個数: 64

約数和(自身を含む): 68299200

約数和(自身を除く): 40097560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 67, 68, 85, 134, 136, 170, 268, 335, 340, 536, 619, 670, 680, 1139, 1238, 1340, 2278, 2476, 2680, 3095, 4556, 4952, 5695, 6190, 9112, 10523, 11390, 12380, 21046, 22780, 24760, 41473, 42092, 45560, 52615, 82946, 84184, 105230, 165892, 207365, 210460, 331784, 414730, 420920, 705041, 829460, 1410082, 1658920, 2820164, 3525205, 5640328, 7050410, 14100820, 28201640]

約数ペア:

[(1, 28201640), (2, 14100820), (4, 7050410), (5, 5640328), (8, 3525205), (10, 2820164), (17, 1658920), (20, 1410082), (34, 829460), (40, 705041), (67, 420920), (68, 414730), (85, 331784), (134, 210460), (136, 207365), (170, 165892), (268, 105230), (335, 84184), (340, 82946), (536, 52615), (619, 45560), (670, 42092), (680, 41473), (1139, 24760), (1238, 22780), (1340, 21046), (2278, 12380), (2476, 11390), (2680, 10523), (3095, 9112), (4556, 6190), (4952, 5695)]