87389620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{2389}}^1$

素因数の和:2488

約数の個数: 48

約数和(自身を含む): 192729600

約数和(自身を除く): 105339980

約数列:

[1, 2, 4, 5, 10, 20, 31, 59, 62, 118, 124, 155, 236, 295, 310, 590, 620, 1180, 1829, 2389, 3658, 4778, 7316, 9145, 9556, 11945, 18290, 23890, 36580, 47780, 74059, 140951, 148118, 281902, 296236, 370295, 563804, 704755, 740590, 1409510, 1481180, 2819020, 4369481, 8738962, 17477924, 21847405, 43694810, 87389620]

約数ペア:

[(1, 87389620), (2, 43694810), (4, 21847405), (5, 17477924), (10, 8738962), (20, 4369481), (31, 2819020), (59, 1481180), (62, 1409510), (118, 740590), (124, 704755), (155, 563804), (236, 370295), (295, 296236), (310, 281902), (590, 148118), (620, 140951), (1180, 74059), (1829, 47780), (2389, 36580), (3658, 23890), (4778, 18290), (7316, 11945), (9145, 9556)]