128585560

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{349}}^1$

素因数の和:572

約数の個数: 64

約数和(自身を含む): 296856000

約数和(自身を除く): 168270440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 151, 244, 302, 305, 349, 488, 604, 610, 698, 755, 1208, 1220, 1396, 1510, 1745, 2440, 2792, 3020, 3490, 6040, 6980, 9211, 13960, 18422, 21289, 36844, 42578, 46055, 52699, 73688, 85156, 92110, 105398, 106445, 170312, 184220, 210796, 212890, 263495, 368440, 421592, 425780, 526990, 851560, 1053980, 2107960, 3214639, 6429278, 12858556, 16073195, 25717112, 32146390, 64292780, 128585560]

約数ペア:

[(1, 128585560), (2, 64292780), (4, 32146390), (5, 25717112), (8, 16073195), (10, 12858556), (20, 6429278), (40, 3214639), (61, 2107960), (122, 1053980), (151, 851560), (244, 526990), (302, 425780), (305, 421592), (349, 368440), (488, 263495), (604, 212890), (610, 210796), (698, 184220), (755, 170312), (1208, 106445), (1220, 105398), (1396, 92110), (1510, 85156), (1745, 73688), (2440, 52699), (2792, 46055), (3020, 42578), (3490, 36844), (6040, 21289), (6980, 18422), (9211, 13960)]