161535320

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{277}}^1$

素因数の和:588

約数の個数: 64

約数和(自身を含む): 372297600

約数和(自身を除く): 210762280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 239, 244, 277, 305, 478, 488, 554, 610, 956, 1108, 1195, 1220, 1385, 1912, 2216, 2390, 2440, 2770, 4780, 5540, 9560, 11080, 14579, 16897, 29158, 33794, 58316, 66203, 67588, 72895, 84485, 116632, 132406, 135176, 145790, 168970, 264812, 291580, 331015, 337940, 529624, 583160, 662030, 675880, 1324060, 2648120, 4038383, 8076766, 16153532, 20191915, 32307064, 40383830, 80767660, 161535320]

約数ペア:

[(1, 161535320), (2, 80767660), (4, 40383830), (5, 32307064), (8, 20191915), (10, 16153532), (20, 8076766), (40, 4038383), (61, 2648120), (122, 1324060), (239, 675880), (244, 662030), (277, 583160), (305, 529624), (478, 337940), (488, 331015), (554, 291580), (610, 264812), (956, 168970), (1108, 145790), (1195, 135176), (1220, 132406), (1385, 116632), (1912, 84485), (2216, 72895), (2390, 67588), (2440, 66203), (2770, 58316), (4780, 33794), (5540, 29158), (9560, 16897), (11080, 14579)]