1977705760

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{398731}}^1$

素因数の和:398777

約数の個数: 48

約数和(自身を含む): 4823062272

約数和(自身を除く): 2845356512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 398731, 797462, 1594924, 1993655, 3189848, 3987310, 6379696, 7974620, 12360661, 12759392, 15949240, 24721322, 31898480, 49442644, 61803305, 63796960, 98885288, 123606610, 197770576, 247213220, 395541152, 494426440, 988852880, 1977705760]

約数ペア:

[(1, 1977705760), (2, 988852880), (4, 494426440), (5, 395541152), (8, 247213220), (10, 197770576), (16, 123606610), (20, 98885288), (31, 63796960), (32, 61803305), (40, 49442644), (62, 31898480), (80, 24721322), (124, 15949240), (155, 12759392), (160, 12360661), (248, 7974620), (310, 6379696), (496, 3987310), (620, 3189848), (992, 1993655), (1240, 1594924), (2480, 797462), (4960, 398731)]