78143900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1069}}^1$

素因数の和:1143

約数の個数: 72

約数和(自身を含む): 183894480

約数和(自身を除く): 105750580

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 43, 50, 68, 85, 86, 100, 170, 172, 215, 340, 425, 430, 731, 850, 860, 1069, 1075, 1462, 1700, 2138, 2150, 2924, 3655, 4276, 4300, 5345, 7310, 10690, 14620, 18173, 18275, 21380, 26725, 36346, 36550, 45967, 53450, 72692, 73100, 90865, 91934, 106900, 181730, 183868, 229835, 363460, 454325, 459670, 781439, 908650, 919340, 1149175, 1562878, 1817300, 2298350, 3125756, 3907195, 4596700, 7814390, 15628780, 19535975, 39071950, 78143900]

約数ペア:

[(1, 78143900), (2, 39071950), (4, 19535975), (5, 15628780), (10, 7814390), (17, 4596700), (20, 3907195), (25, 3125756), (34, 2298350), (43, 1817300), (50, 1562878), (68, 1149175), (85, 919340), (86, 908650), (100, 781439), (170, 459670), (172, 454325), (215, 363460), (340, 229835), (425, 183868), (430, 181730), (731, 106900), (850, 91934), (860, 90865), (1069, 73100), (1075, 72692), (1462, 53450), (1700, 45967), (2138, 36550), (2150, 36346), (2924, 26725), (3655, 21380), (4276, 18275), (4300, 18173), (5345, 14620), (7310, 10690)]