2018991740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:639

約数の個数: 96

約数和(自身を含む): 4572469440

約数和(自身を除く): 2553477700

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 157, 170, 218, 314, 340, 347, 436, 545, 628, 694, 785, 1090, 1388, 1570, 1735, 1853, 2180, 2669, 3140, 3470, 3706, 5338, 5899, 6940, 7412, 9265, 10676, 11798, 13345, 17113, 18530, 23596, 26690, 29495, 34226, 37060, 37823, 53380, 54479, 58990, 68452, 75646, 85565, 108958, 117980, 151292, 171130, 189115, 217916, 272395, 290921, 342260, 378230, 544790, 581842, 642991, 756460, 926143, 1089580, 1163684, 1285982, 1454605, 1852286, 2571964, 2909210, 3214955, 3704572, 4630715, 5818420, 5938211, 6429910, 9261430, 11876422, 12859820, 18522860, 23752844, 29691055, 59382110, 100949587, 118764220, 201899174, 403798348, 504747935, 1009495870, 2018991740]

約数ペア:

[(1, 2018991740), (2, 1009495870), (4, 504747935), (5, 403798348), (10, 201899174), (17, 118764220), (20, 100949587), (34, 59382110), (68, 29691055), (85, 23752844), (109, 18522860), (157, 12859820), (170, 11876422), (218, 9261430), (314, 6429910), (340, 5938211), (347, 5818420), (436, 4630715), (545, 3704572), (628, 3214955), (694, 2909210), (785, 2571964), (1090, 1852286), (1388, 1454605), (1570, 1285982), (1735, 1163684), (1853, 1089580), (2180, 926143), (2669, 756460), (3140, 642991), (3470, 581842), (3706, 544790), (5338, 378230), (5899, 342260), (6940, 290921), (7412, 272395), (9265, 217916), (10676, 189115), (11798, 171130), (13345, 151292), (17113, 117980), (18530, 108958), (23596, 85565), (26690, 75646), (29495, 68452), (34226, 58990), (37060, 54479), (37823, 53380)]