31881120

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3907}}^1$

素因数の和:3942

約数の個数: 96

約数和(自身を含む): 106360128

約数和(自身を除く): 74479008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 68, 80, 85, 96, 102, 120, 136, 160, 170, 204, 240, 255, 272, 340, 408, 480, 510, 544, 680, 816, 1020, 1360, 1632, 2040, 2720, 3907, 4080, 7814, 8160, 11721, 15628, 19535, 23442, 31256, 39070, 46884, 58605, 62512, 66419, 78140, 93768, 117210, 125024, 132838, 156280, 187536, 199257, 234420, 265676, 312560, 332095, 375072, 398514, 468840, 531352, 625120, 664190, 797028, 937680, 996285, 1062704, 1328380, 1594056, 1875360, 1992570, 2125408, 2656760, 3188112, 3985140, 5313520, 6376224, 7970280, 10627040, 15940560, 31881120]

約数ペア:

[(1, 31881120), (2, 15940560), (3, 10627040), (4, 7970280), (5, 6376224), (6, 5313520), (8, 3985140), (10, 3188112), (12, 2656760), (15, 2125408), (16, 1992570), (17, 1875360), (20, 1594056), (24, 1328380), (30, 1062704), (32, 996285), (34, 937680), (40, 797028), (48, 664190), (51, 625120), (60, 531352), (68, 468840), (80, 398514), (85, 375072), (96, 332095), (102, 312560), (120, 265676), (136, 234420), (160, 199257), (170, 187536), (204, 156280), (240, 132838), (255, 125024), (272, 117210), (340, 93768), (408, 78140), (480, 66419), (510, 62512), (544, 58605), (680, 46884), (816, 39070), (1020, 31256), (1360, 23442), (1632, 19535), (2040, 15628), (2720, 11721), (3907, 8160), (4080, 7814)]