31357879220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{79}}^1\times {\mathrm{23599}}^1$

素因数の和:23745

約数の個数: 72

約数和(自身を含む): 69066816000

約数和(自身を除く): 37708936780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 290, 316, 395, 580, 790, 841, 1580, 1682, 2291, 3364, 4205, 4582, 8410, 9164, 11455, 16820, 22910, 23599, 45820, 47198, 66439, 94396, 117995, 132878, 235990, 265756, 332195, 471980, 664390, 684371, 1328780, 1368742, 1864321, 2737484, 3421855, 3728642, 6843710, 7457284, 9321605, 13687420, 18643210, 19846759, 37286420, 39693518, 54065309, 79387036, 99233795, 108130618, 198467590, 216261236, 270326545, 396935180, 540653090, 1081306180, 1567893961, 3135787922, 6271575844, 7839469805, 15678939610, 31357879220]

約数ペア:

[(1, 31357879220), (2, 15678939610), (4, 7839469805), (5, 6271575844), (10, 3135787922), (20, 1567893961), (29, 1081306180), (58, 540653090), (79, 396935180), (116, 270326545), (145, 216261236), (158, 198467590), (290, 108130618), (316, 99233795), (395, 79387036), (580, 54065309), (790, 39693518), (841, 37286420), (1580, 19846759), (1682, 18643210), (2291, 13687420), (3364, 9321605), (4205, 7457284), (4582, 6843710), (8410, 3728642), (9164, 3421855), (11455, 2737484), (16820, 1864321), (22910, 1368742), (23599, 1328780), (45820, 684371), (47198, 664390), (66439, 471980), (94396, 332195), (117995, 265756), (132878, 235990)]