31539040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1$

素因数の和:344

約数の個数: 96

約数和(自身を含む): 81920160

約数和(自身を除く): 50381120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 59, 65, 80, 104, 118, 130, 160, 208, 236, 257, 260, 295, 416, 472, 514, 520, 590, 767, 944, 1028, 1040, 1180, 1285, 1534, 1888, 2056, 2080, 2360, 2570, 3068, 3341, 3835, 4112, 4720, 5140, 6136, 6682, 7670, 8224, 9440, 10280, 12272, 13364, 15163, 15340, 16705, 20560, 24544, 26728, 30326, 30680, 33410, 41120, 53456, 60652, 61360, 66820, 75815, 106912, 121304, 122720, 133640, 151630, 197119, 242608, 267280, 303260, 394238, 485216, 534560, 606520, 788476, 985595, 1213040, 1576952, 1971190, 2426080, 3153904, 3942380, 6307808, 7884760, 15769520, 31539040]

約数ペア:

[(1, 31539040), (2, 15769520), (4, 7884760), (5, 6307808), (8, 3942380), (10, 3153904), (13, 2426080), (16, 1971190), (20, 1576952), (26, 1213040), (32, 985595), (40, 788476), (52, 606520), (59, 534560), (65, 485216), (80, 394238), (104, 303260), (118, 267280), (130, 242608), (160, 197119), (208, 151630), (236, 133640), (257, 122720), (260, 121304), (295, 106912), (416, 75815), (472, 66820), (514, 61360), (520, 60652), (590, 53456), (767, 41120), (944, 33410), (1028, 30680), (1040, 30326), (1180, 26728), (1285, 24544), (1534, 20560), (1888, 16705), (2056, 15340), (2080, 15163), (2360, 13364), (2570, 12272), (3068, 10280), (3341, 9440), (3835, 8224), (4112, 7670), (4720, 6682), (5140, 6136)]