31386950

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{557}}^1$

素因数の和:606

約数の個数: 72

約数和(自身を含む): 70990992

約数和(自身を除く): 39604042

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 49, 50, 70, 98, 115, 161, 175, 230, 245, 322, 350, 490, 557, 575, 805, 1114, 1127, 1150, 1225, 1610, 2254, 2450, 2785, 3899, 4025, 5570, 5635, 7798, 8050, 11270, 12811, 13925, 19495, 25622, 27293, 27850, 28175, 38990, 54586, 56350, 64055, 89677, 97475, 128110, 136465, 179354, 194950, 272930, 320275, 448385, 627739, 640550, 682325, 896770, 1255478, 1364650, 2241925, 3138695, 4483850, 6277390, 15693475, 31386950]

約数ペア:

[(1, 31386950), (2, 15693475), (5, 6277390), (7, 4483850), (10, 3138695), (14, 2241925), (23, 1364650), (25, 1255478), (35, 896770), (46, 682325), (49, 640550), (50, 627739), (70, 448385), (98, 320275), (115, 272930), (161, 194950), (175, 179354), (230, 136465), (245, 128110), (322, 97475), (350, 89677), (490, 64055), (557, 56350), (575, 54586), (805, 38990), (1114, 28175), (1127, 27850), (1150, 27293), (1225, 25622), (1610, 19495), (2254, 13925), (2450, 12811), (2785, 11270), (3899, 8050), (4025, 7798), (5570, 5635)]