64103680

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{821}}^1$

素因数の和:903

約数の個数: 72

約数和(自身を含む): 156255624

約数和(自身を除く): 92151944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 610, 640, 821, 976, 1220, 1280, 1642, 1952, 2440, 3284, 3904, 4105, 4880, 6568, 7808, 8210, 9760, 13136, 15616, 16420, 19520, 26272, 32840, 39040, 50081, 52544, 65680, 78080, 100162, 105088, 131360, 200324, 210176, 250405, 262720, 400648, 500810, 525440, 801296, 1001620, 1050880, 1602592, 2003240, 3205184, 4006480, 6410368, 8012960, 12820736, 16025920, 32051840, 64103680]

約数ペア:

[(1, 64103680), (2, 32051840), (4, 16025920), (5, 12820736), (8, 8012960), (10, 6410368), (16, 4006480), (20, 3205184), (32, 2003240), (40, 1602592), (61, 1050880), (64, 1001620), (80, 801296), (122, 525440), (128, 500810), (160, 400648), (244, 262720), (256, 250405), (305, 210176), (320, 200324), (488, 131360), (610, 105088), (640, 100162), (821, 78080), (976, 65680), (1220, 52544), (1280, 50081), (1642, 39040), (1952, 32840), (2440, 26272), (3284, 19520), (3904, 16420), (4105, 15616), (4880, 13136), (6568, 9760), (7808, 8210)]