31520800

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:123

約数の個数: 108

約数和(自身を含む): 81451818

約数和(自身を除く): 49931018

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 41, 50, 62, 80, 82, 100, 124, 155, 160, 164, 200, 205, 248, 310, 328, 400, 410, 496, 620, 656, 775, 800, 820, 961, 992, 1025, 1240, 1271, 1312, 1550, 1640, 1922, 2050, 2480, 2542, 3100, 3280, 3844, 4100, 4805, 4960, 5084, 6200, 6355, 6560, 7688, 8200, 9610, 10168, 12400, 12710, 15376, 16400, 19220, 20336, 24025, 24800, 25420, 30752, 31775, 32800, 38440, 39401, 40672, 48050, 50840, 63550, 76880, 78802, 96100, 101680, 127100, 153760, 157604, 192200, 197005, 203360, 254200, 315208, 384400, 394010, 508400, 630416, 768800, 788020, 985025, 1016800, 1260832, 1576040, 1970050, 3152080, 3940100, 6304160, 7880200, 15760400, 31520800]

約数ペア:

[(1, 31520800), (2, 15760400), (4, 7880200), (5, 6304160), (8, 3940100), (10, 3152080), (16, 1970050), (20, 1576040), (25, 1260832), (31, 1016800), (32, 985025), (40, 788020), (41, 768800), (50, 630416), (62, 508400), (80, 394010), (82, 384400), (100, 315208), (124, 254200), (155, 203360), (160, 197005), (164, 192200), (200, 157604), (205, 153760), (248, 127100), (310, 101680), (328, 96100), (400, 78802), (410, 76880), (496, 63550), (620, 50840), (656, 48050), (775, 40672), (800, 39401), (820, 38440), (961, 32800), (992, 31775), (1025, 30752), (1240, 25420), (1271, 24800), (1312, 24025), (1550, 20336), (1640, 19220), (1922, 16400), (2050, 15376), (2480, 12710), (2542, 12400), (3100, 10168), (3280, 9610), (3844, 8200), (4100, 7688), (4805, 6560), (4960, 6355), (5084, 6200)]