31378788

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{521}}^1$

素因数の和:777

約数の個数: 72

約数和(自身を含む): 91203840

約数和(自身を除く): 59825052

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 239, 252, 478, 521, 717, 956, 1042, 1434, 1563, 1673, 2084, 2151, 2868, 3126, 3346, 3647, 4302, 4689, 5019, 6252, 6692, 7294, 8604, 9378, 10038, 10941, 14588, 15057, 18756, 20076, 21882, 30114, 32823, 43764, 60228, 65646, 124519, 131292, 249038, 373557, 498076, 747114, 871633, 1120671, 1494228, 1743266, 2241342, 2614899, 3486532, 4482684, 5229798, 7844697, 10459596, 15689394, 31378788]

約数ペア:

[(1, 31378788), (2, 15689394), (3, 10459596), (4, 7844697), (6, 5229798), (7, 4482684), (9, 3486532), (12, 2614899), (14, 2241342), (18, 1743266), (21, 1494228), (28, 1120671), (36, 871633), (42, 747114), (63, 498076), (84, 373557), (126, 249038), (239, 131292), (252, 124519), (478, 65646), (521, 60228), (717, 43764), (956, 32823), (1042, 30114), (1434, 21882), (1563, 20076), (1673, 18756), (2084, 15057), (2151, 14588), (2868, 10941), (3126, 10038), (3346, 9378), (3647, 8604), (4302, 7294), (4689, 6692), (5019, 6252)]