1783640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 4419360

約数和(自身を除く): 2635720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 61, 68, 85, 86, 122, 136, 170, 172, 215, 244, 305, 340, 344, 430, 488, 610, 680, 731, 860, 1037, 1220, 1462, 1720, 2074, 2440, 2623, 2924, 3655, 4148, 5185, 5246, 5848, 7310, 8296, 10370, 10492, 13115, 14620, 20740, 20984, 26230, 29240, 41480, 44591, 52460, 89182, 104920, 178364, 222955, 356728, 445910, 891820, 1783640]

約数ペア:

[(1, 1783640), (2, 891820), (4, 445910), (5, 356728), (8, 222955), (10, 178364), (17, 104920), (20, 89182), (34, 52460), (40, 44591), (43, 41480), (61, 29240), (68, 26230), (85, 20984), (86, 20740), (122, 14620), (136, 13115), (170, 10492), (172, 10370), (215, 8296), (244, 7310), (305, 5848), (340, 5246), (344, 5185), (430, 4148), (488, 3655), (610, 2924), (680, 2623), (731, 2440), (860, 2074), (1037, 1720), (1220, 1462)]