28918880

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2963}}^1$

素因数の和:3039

約数の個数: 48

約数和(自身を含む): 69464304

約数和(自身を除く): 40545424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2440, 2963, 4880, 5926, 9760, 11852, 14815, 23704, 29630, 47408, 59260, 94816, 118520, 180743, 237040, 361486, 474080, 722972, 903715, 1445944, 1807430, 2891888, 3614860, 5783776, 7229720, 14459440, 28918880]

約数ペア:

[(1, 28918880), (2, 14459440), (4, 7229720), (5, 5783776), (8, 3614860), (10, 2891888), (16, 1807430), (20, 1445944), (32, 903715), (40, 722972), (61, 474080), (80, 361486), (122, 237040), (160, 180743), (244, 118520), (305, 94816), (488, 59260), (610, 47408), (976, 29630), (1220, 23704), (1952, 14815), (2440, 11852), (2963, 9760), (4880, 5926)]