317943031820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{397}}^1\times {\mathrm{110923}}^1$

素因数の和:111367

約数の個数: 72

約数和(自身を含む): 706452327504

約数和(自身を除く): 388509295684

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 397, 722, 794, 1444, 1588, 1805, 1985, 3610, 3970, 7220, 7543, 7940, 15086, 30172, 37715, 75430, 110923, 143317, 150860, 221846, 286634, 443692, 554615, 573268, 716585, 1109230, 1433170, 2107537, 2218460, 2866340, 4215074, 8430148, 10537685, 21075370, 40043203, 42150740, 44036431, 80086406, 88072862, 160172812, 176145724, 200216015, 220182155, 400432030, 440364310, 800864060, 836692189, 880728620, 1673384378, 3346768756, 4183460945, 8366921890, 15897151591, 16733843780, 31794303182, 63588606364, 79485757955, 158971515910, 317943031820]

約数ペア:

[(1, 317943031820), (2, 158971515910), (4, 79485757955), (5, 63588606364), (10, 31794303182), (19, 16733843780), (20, 15897151591), (38, 8366921890), (76, 4183460945), (95, 3346768756), (190, 1673384378), (361, 880728620), (380, 836692189), (397, 800864060), (722, 440364310), (794, 400432030), (1444, 220182155), (1588, 200216015), (1805, 176145724), (1985, 160172812), (3610, 88072862), (3970, 80086406), (7220, 44036431), (7543, 42150740), (7940, 40043203), (15086, 21075370), (30172, 10537685), (37715, 8430148), (75430, 4215074), (110923, 2866340), (143317, 2218460), (150860, 2107537), (221846, 1433170), (286634, 1109230), (443692, 716585), (554615, 573268)]