31581240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 101943360

約数和(自身を除く): 70362120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 113, 120, 136, 137, 170, 204, 226, 255, 274, 339, 340, 408, 411, 452, 510, 548, 565, 678, 680, 685, 822, 904, 1020, 1096, 1130, 1356, 1370, 1644, 1695, 1921, 2040, 2055, 2260, 2329, 2712, 2740, 3288, 3390, 3842, 4110, 4520, 4658, 5480, 5763, 6780, 6987, 7684, 8220, 9316, 9605, 11526, 11645, 13560, 13974, 15368, 15481, 16440, 18632, 19210, 23052, 23290, 27948, 28815, 30962, 34935, 38420, 46104, 46443, 46580, 55896, 57630, 61924, 69870, 76840, 77405, 92886, 93160, 115260, 123848, 139740, 154810, 185772, 230520, 232215, 263177, 279480, 309620, 371544, 464430, 526354, 619240, 789531, 928860, 1052708, 1315885, 1579062, 1857720, 2105416, 2631770, 3158124, 3947655, 5263540, 6316248, 7895310, 10527080, 15790620, 31581240]

約数ペア:

[(1, 31581240), (2, 15790620), (3, 10527080), (4, 7895310), (5, 6316248), (6, 5263540), (8, 3947655), (10, 3158124), (12, 2631770), (15, 2105416), (17, 1857720), (20, 1579062), (24, 1315885), (30, 1052708), (34, 928860), (40, 789531), (51, 619240), (60, 526354), (68, 464430), (85, 371544), (102, 309620), (113, 279480), (120, 263177), (136, 232215), (137, 230520), (170, 185772), (204, 154810), (226, 139740), (255, 123848), (274, 115260), (339, 93160), (340, 92886), (408, 77405), (411, 76840), (452, 69870), (510, 61924), (548, 57630), (565, 55896), (678, 46580), (680, 46443), (685, 46104), (822, 38420), (904, 34935), (1020, 30962), (1096, 28815), (1130, 27948), (1356, 23290), (1370, 23052), (1644, 19210), (1695, 18632), (1921, 16440), (2040, 15481), (2055, 15368), (2260, 13974), (2329, 13560), (2712, 11645), (2740, 11526), (3288, 9605), (3390, 9316), (3842, 8220), (4110, 7684), (4520, 6987), (4658, 6780), (5480, 5763)]