31082480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:80

約数の個数: 180

約数和(自身を含む): 90541080

約数和(自身を除く): 59458600

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 19, 20, 22, 26, 38, 40, 44, 52, 55, 65, 76, 80, 88, 95, 104, 110, 121, 130, 143, 152, 169, 176, 190, 208, 209, 220, 242, 247, 260, 286, 304, 338, 380, 418, 440, 484, 494, 520, 572, 605, 676, 715, 760, 836, 845, 880, 968, 988, 1040, 1045, 1144, 1210, 1235, 1352, 1430, 1520, 1573, 1672, 1690, 1859, 1936, 1976, 2090, 2288, 2299, 2420, 2470, 2704, 2717, 2860, 3146, 3211, 3344, 3380, 3718, 3952, 4180, 4598, 4840, 4940, 5434, 5720, 6292, 6422, 6760, 7436, 7865, 8360, 9196, 9295, 9680, 9880, 10868, 11440, 11495, 12584, 12844, 13520, 13585, 14872, 15730, 16055, 16720, 18392, 18590, 19760, 20449, 21736, 22990, 25168, 25688, 27170, 29744, 29887, 31460, 32110, 35321, 36784, 37180, 40898, 43472, 45980, 51376, 54340, 59774, 62920, 64220, 70642, 74360, 81796, 91960, 102245, 108680, 119548, 125840, 128440, 141284, 148720, 149435, 163592, 176605, 183920, 204490, 217360, 239096, 256880, 282568, 298870, 327184, 353210, 388531, 408980, 478192, 565136, 597740, 706420, 777062, 817960, 1195480, 1412840, 1554124, 1635920, 1942655, 2390960, 2825680, 3108248, 3885310, 6216496, 7770620, 15541240, 31082480]

約数ペア:

[(1, 31082480), (2, 15541240), (4, 7770620), (5, 6216496), (8, 3885310), (10, 3108248), (11, 2825680), (13, 2390960), (16, 1942655), (19, 1635920), (20, 1554124), (22, 1412840), (26, 1195480), (38, 817960), (40, 777062), (44, 706420), (52, 597740), (55, 565136), (65, 478192), (76, 408980), (80, 388531), (88, 353210), (95, 327184), (104, 298870), (110, 282568), (121, 256880), (130, 239096), (143, 217360), (152, 204490), (169, 183920), (176, 176605), (190, 163592), (208, 149435), (209, 148720), (220, 141284), (242, 128440), (247, 125840), (260, 119548), (286, 108680), (304, 102245), (338, 91960), (380, 81796), (418, 74360), (440, 70642), (484, 64220), (494, 62920), (520, 59774), (572, 54340), (605, 51376), (676, 45980), (715, 43472), (760, 40898), (836, 37180), (845, 36784), (880, 35321), (968, 32110), (988, 31460), (1040, 29887), (1045, 29744), (1144, 27170), (1210, 25688), (1235, 25168), (1352, 22990), (1430, 21736), (1520, 20449), (1573, 19760), (1672, 18590), (1690, 18392), (1859, 16720), (1936, 16055), (1976, 15730), (2090, 14872), (2288, 13585), (2299, 13520), (2420, 12844), (2470, 12584), (2704, 11495), (2717, 11440), (2860, 10868), (3146, 9880), (3211, 9680), (3344, 9295), (3380, 9196), (3718, 8360), (3952, 7865), (4180, 7436), (4598, 6760), (4840, 6422), (4940, 6292), (5434, 5720)]