64201720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1847}}^1$

素因数の和:1948

約数の個数: 64

約数和(自身を含む): 159667200

約数和(自身を除く): 95465480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 316, 395, 440, 632, 790, 869, 1580, 1738, 1847, 3160, 3476, 3694, 4345, 6952, 7388, 8690, 9235, 14776, 17380, 18470, 20317, 34760, 36940, 40634, 73880, 81268, 101585, 145913, 162536, 203170, 291826, 406340, 583652, 729565, 812680, 1167304, 1459130, 1605043, 2918260, 3210086, 5836520, 6420172, 8025215, 12840344, 16050430, 32100860, 64201720]

約数ペア:

[(1, 64201720), (2, 32100860), (4, 16050430), (5, 12840344), (8, 8025215), (10, 6420172), (11, 5836520), (20, 3210086), (22, 2918260), (40, 1605043), (44, 1459130), (55, 1167304), (79, 812680), (88, 729565), (110, 583652), (158, 406340), (220, 291826), (316, 203170), (395, 162536), (440, 145913), (632, 101585), (790, 81268), (869, 73880), (1580, 40634), (1738, 36940), (1847, 34760), (3160, 20317), (3476, 18470), (3694, 17380), (4345, 14776), (6952, 9235), (7388, 8690)]