2135900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:111

約数の個数: 72

約数和(自身を含む): 5249664

約数和(自身を除く): 3113764

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 53, 62, 65, 100, 106, 124, 130, 155, 212, 260, 265, 310, 325, 403, 530, 620, 650, 689, 775, 806, 1060, 1300, 1325, 1378, 1550, 1612, 1643, 2015, 2650, 2756, 3100, 3286, 3445, 4030, 5300, 6572, 6890, 8060, 8215, 10075, 13780, 16430, 17225, 20150, 21359, 32860, 34450, 40300, 41075, 42718, 68900, 82150, 85436, 106795, 164300, 213590, 427180, 533975, 1067950, 2135900]

約数ペア:

[(1, 2135900), (2, 1067950), (4, 533975), (5, 427180), (10, 213590), (13, 164300), (20, 106795), (25, 85436), (26, 82150), (31, 68900), (50, 42718), (52, 41075), (53, 40300), (62, 34450), (65, 32860), (100, 21359), (106, 20150), (124, 17225), (130, 16430), (155, 13780), (212, 10075), (260, 8215), (265, 8060), (310, 6890), (325, 6572), (403, 5300), (530, 4030), (620, 3445), (650, 3286), (689, 3100), (775, 2756), (806, 2650), (1060, 2015), (1300, 1643), (1325, 1612), (1378, 1550)]