31327160

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{347}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 73789920

約数和(自身を除く): 42462760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 61, 74, 122, 148, 185, 244, 296, 305, 347, 370, 488, 610, 694, 740, 1220, 1388, 1480, 1735, 2257, 2440, 2776, 3470, 4514, 6940, 9028, 11285, 12839, 13880, 18056, 21167, 22570, 25678, 42334, 45140, 51356, 64195, 84668, 90280, 102712, 105835, 128390, 169336, 211670, 256780, 423340, 513560, 783179, 846680, 1566358, 3132716, 3915895, 6265432, 7831790, 15663580, 31327160]

約数ペア:

[(1, 31327160), (2, 15663580), (4, 7831790), (5, 6265432), (8, 3915895), (10, 3132716), (20, 1566358), (37, 846680), (40, 783179), (61, 513560), (74, 423340), (122, 256780), (148, 211670), (185, 169336), (244, 128390), (296, 105835), (305, 102712), (347, 90280), (370, 84668), (488, 64195), (610, 51356), (694, 45140), (740, 42334), (1220, 25678), (1388, 22570), (1480, 21167), (1735, 18056), (2257, 13880), (2440, 12839), (2776, 11285), (3470, 9028), (4514, 6940)]