440346320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1\times {\mathrm{503}}^1$

素因数の和:900

約数の個数: 80

約数和(自身を含む): 1061932032

約数和(自身を除く): 621585712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 353, 496, 503, 620, 706, 1006, 1240, 1412, 1765, 2012, 2480, 2515, 2824, 3530, 4024, 5030, 5648, 7060, 8048, 10060, 10943, 14120, 15593, 20120, 21886, 28240, 31186, 40240, 43772, 54715, 62372, 77965, 87544, 109430, 124744, 155930, 175088, 177559, 218860, 249488, 311860, 355118, 437720, 623720, 710236, 875440, 887795, 1247440, 1420472, 1775590, 2840944, 3551180, 5504329, 7102360, 11008658, 14204720, 22017316, 27521645, 44034632, 55043290, 88069264, 110086580, 220173160, 440346320]

約数ペア:

[(1, 440346320), (2, 220173160), (4, 110086580), (5, 88069264), (8, 55043290), (10, 44034632), (16, 27521645), (20, 22017316), (31, 14204720), (40, 11008658), (62, 7102360), (80, 5504329), (124, 3551180), (155, 2840944), (248, 1775590), (310, 1420472), (353, 1247440), (496, 887795), (503, 875440), (620, 710236), (706, 623720), (1006, 437720), (1240, 355118), (1412, 311860), (1765, 249488), (2012, 218860), (2480, 177559), (2515, 175088), (2824, 155930), (3530, 124744), (4024, 109430), (5030, 87544), (5648, 77965), (7060, 62372), (8048, 54715), (10060, 43772), (10943, 40240), (14120, 31186), (15593, 28240), (20120, 21886)]