31404720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 160

約数和(自身を含む): 104993280

約数和(自身を除く): 73588560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 71, 76, 80, 95, 97, 114, 120, 142, 152, 190, 194, 213, 228, 240, 284, 285, 291, 304, 355, 380, 388, 426, 456, 485, 568, 570, 582, 710, 760, 776, 852, 912, 970, 1065, 1136, 1140, 1164, 1349, 1420, 1455, 1520, 1552, 1704, 1843, 1940, 2130, 2280, 2328, 2698, 2840, 2910, 3408, 3686, 3880, 4047, 4260, 4560, 4656, 5396, 5529, 5680, 5820, 6745, 6887, 7372, 7760, 8094, 8520, 9215, 10792, 11058, 11640, 13490, 13774, 14744, 16188, 17040, 18430, 20235, 20661, 21584, 22116, 23280, 26980, 27548, 27645, 29488, 32376, 34435, 36860, 40470, 41322, 44232, 53960, 55096, 55290, 64752, 68870, 73720, 80940, 82644, 88464, 103305, 107920, 110192, 110580, 130853, 137740, 147440, 161880, 165288, 206610, 221160, 261706, 275480, 323760, 330576, 392559, 413220, 442320, 523412, 550960, 654265, 785118, 826440, 1046824, 1308530, 1570236, 1652880, 1962795, 2093648, 2617060, 3140472, 3925590, 5234120, 6280944, 7851180, 10468240, 15702360, 31404720]

約数ペア:

[(1, 31404720), (2, 15702360), (3, 10468240), (4, 7851180), (5, 6280944), (6, 5234120), (8, 3925590), (10, 3140472), (12, 2617060), (15, 2093648), (16, 1962795), (19, 1652880), (20, 1570236), (24, 1308530), (30, 1046824), (38, 826440), (40, 785118), (48, 654265), (57, 550960), (60, 523412), (71, 442320), (76, 413220), (80, 392559), (95, 330576), (97, 323760), (114, 275480), (120, 261706), (142, 221160), (152, 206610), (190, 165288), (194, 161880), (213, 147440), (228, 137740), (240, 130853), (284, 110580), (285, 110192), (291, 107920), (304, 103305), (355, 88464), (380, 82644), (388, 80940), (426, 73720), (456, 68870), (485, 64752), (568, 55290), (570, 55096), (582, 53960), (710, 44232), (760, 41322), (776, 40470), (852, 36860), (912, 34435), (970, 32376), (1065, 29488), (1136, 27645), (1140, 27548), (1164, 26980), (1349, 23280), (1420, 22116), (1455, 21584), (1520, 20661), (1552, 20235), (1704, 18430), (1843, 17040), (1940, 16188), (2130, 14744), (2280, 13774), (2328, 13490), (2698, 11640), (2840, 11058), (2910, 10792), (3408, 9215), (3686, 8520), (3880, 8094), (4047, 7760), (4260, 7372), (4560, 6887), (4656, 6745), (5396, 5820), (5529, 5680)]