15661680460

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{607}}^1\times {\mathrm{21149}}^1$

素因数の和:21826

約数の個数: 48

約数和(自身を含む): 33485356800

約数和(自身を除く): 17823676340

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 607, 610, 1214, 1220, 2428, 3035, 6070, 12140, 21149, 37027, 42298, 74054, 84596, 105745, 148108, 185135, 211490, 370270, 422980, 740540, 1290089, 2580178, 5160356, 6450445, 12837443, 12900890, 25674886, 25801780, 51349772, 64187215, 128374430, 256748860, 783084023, 1566168046, 3132336092, 3915420115, 7830840230, 15661680460]

約数ペア:

[(1, 15661680460), (2, 7830840230), (4, 3915420115), (5, 3132336092), (10, 1566168046), (20, 783084023), (61, 256748860), (122, 128374430), (244, 64187215), (305, 51349772), (607, 25801780), (610, 25674886), (1214, 12900890), (1220, 12837443), (2428, 6450445), (3035, 5160356), (6070, 2580178), (12140, 1290089), (21149, 740540), (37027, 422980), (42298, 370270), (74054, 211490), (84596, 185135), (105745, 148108)]