40608920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:189

約数の個数: 128

約数和(自身を含む): 108475200

約数和(自身を除く): 67866280

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 61, 68, 85, 88, 89, 110, 122, 136, 170, 178, 187, 220, 244, 305, 340, 356, 374, 440, 445, 488, 610, 671, 680, 712, 748, 890, 935, 979, 1037, 1220, 1342, 1496, 1513, 1780, 1870, 1958, 2074, 2440, 2684, 3026, 3355, 3560, 3740, 3916, 4148, 4895, 5185, 5368, 5429, 6052, 6710, 7480, 7565, 7832, 8296, 9790, 10370, 10858, 11407, 12104, 13420, 15130, 16643, 19580, 20740, 21716, 22814, 26840, 27145, 30260, 33286, 39160, 41480, 43432, 45628, 54290, 57035, 59719, 60520, 66572, 83215, 91256, 92293, 108580, 114070, 119438, 133144, 166430, 184586, 217160, 228140, 238876, 298595, 332860, 369172, 456280, 461465, 477752, 597190, 665720, 738344, 922930, 1015223, 1194380, 1845860, 2030446, 2388760, 3691720, 4060892, 5076115, 8121784, 10152230, 20304460, 40608920]

約数ペア:

[(1, 40608920), (2, 20304460), (4, 10152230), (5, 8121784), (8, 5076115), (10, 4060892), (11, 3691720), (17, 2388760), (20, 2030446), (22, 1845860), (34, 1194380), (40, 1015223), (44, 922930), (55, 738344), (61, 665720), (68, 597190), (85, 477752), (88, 461465), (89, 456280), (110, 369172), (122, 332860), (136, 298595), (170, 238876), (178, 228140), (187, 217160), (220, 184586), (244, 166430), (305, 133144), (340, 119438), (356, 114070), (374, 108580), (440, 92293), (445, 91256), (488, 83215), (610, 66572), (671, 60520), (680, 59719), (712, 57035), (748, 54290), (890, 45628), (935, 43432), (979, 41480), (1037, 39160), (1220, 33286), (1342, 30260), (1496, 27145), (1513, 26840), (1780, 22814), (1870, 21716), (1958, 20740), (2074, 19580), (2440, 16643), (2684, 15130), (3026, 13420), (3355, 12104), (3560, 11407), (3740, 10858), (3916, 10370), (4148, 9790), (4895, 8296), (5185, 7832), (5368, 7565), (5429, 7480), (6052, 6710)]