66808720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:165

約数の個数: 120

約数和(自身を含む): 177310080

約数和(自身を除く): 110501360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 79, 80, 88, 110, 124, 155, 158, 176, 220, 248, 310, 316, 341, 395, 440, 496, 620, 632, 682, 790, 869, 880, 961, 1240, 1264, 1364, 1580, 1705, 1738, 1922, 2449, 2480, 2728, 3160, 3410, 3476, 3844, 4345, 4805, 4898, 5456, 6320, 6820, 6952, 7688, 8690, 9610, 9796, 10571, 12245, 13640, 13904, 15376, 17380, 19220, 19592, 21142, 24490, 26939, 27280, 34760, 38440, 39184, 42284, 48980, 52855, 53878, 69520, 75919, 76880, 84568, 97960, 105710, 107756, 134695, 151838, 169136, 195920, 211420, 215512, 269390, 303676, 379595, 422840, 431024, 538780, 607352, 759190, 835109, 845680, 1077560, 1214704, 1518380, 1670218, 2155120, 3036760, 3340436, 4175545, 6073520, 6680872, 8351090, 13361744, 16702180, 33404360, 66808720]

約数ペア:

[(1, 66808720), (2, 33404360), (4, 16702180), (5, 13361744), (8, 8351090), (10, 6680872), (11, 6073520), (16, 4175545), (20, 3340436), (22, 3036760), (31, 2155120), (40, 1670218), (44, 1518380), (55, 1214704), (62, 1077560), (79, 845680), (80, 835109), (88, 759190), (110, 607352), (124, 538780), (155, 431024), (158, 422840), (176, 379595), (220, 303676), (248, 269390), (310, 215512), (316, 211420), (341, 195920), (395, 169136), (440, 151838), (496, 134695), (620, 107756), (632, 105710), (682, 97960), (790, 84568), (869, 76880), (880, 75919), (961, 69520), (1240, 53878), (1264, 52855), (1364, 48980), (1580, 42284), (1705, 39184), (1738, 38440), (1922, 34760), (2449, 27280), (2480, 26939), (2728, 24490), (3160, 21142), (3410, 19592), (3476, 19220), (3844, 17380), (4345, 15376), (4805, 13904), (4898, 13640), (5456, 12245), (6320, 10571), (6820, 9796), (6952, 9610), (7688, 8690)]