31930450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 72

約数和(自身を含む): 65905380

約数和(自身を除く): 33974930

約数列:

[1, 2, 5, 10, 19, 25, 29, 38, 50, 58, 61, 95, 122, 145, 190, 290, 305, 361, 475, 551, 610, 722, 725, 950, 1102, 1159, 1450, 1525, 1769, 1805, 2318, 2755, 3050, 3538, 3610, 5510, 5795, 8845, 9025, 10469, 11590, 13775, 17690, 18050, 20938, 22021, 27550, 28975, 33611, 44042, 44225, 52345, 57950, 67222, 88450, 104690, 110105, 168055, 220210, 261725, 336110, 523450, 550525, 638609, 840275, 1101050, 1277218, 1680550, 3193045, 6386090, 15965225, 31930450]

約数ペア:

[(1, 31930450), (2, 15965225), (5, 6386090), (10, 3193045), (19, 1680550), (25, 1277218), (29, 1101050), (38, 840275), (50, 638609), (58, 550525), (61, 523450), (95, 336110), (122, 261725), (145, 220210), (190, 168055), (290, 110105), (305, 104690), (361, 88450), (475, 67222), (551, 57950), (610, 52345), (722, 44225), (725, 44042), (950, 33611), (1102, 28975), (1159, 27550), (1450, 22021), (1525, 20938), (1769, 18050), (1805, 17690), (2318, 13775), (2755, 11590), (3050, 10469), (3538, 9025), (3610, 8845), (5510, 5795)]