13568840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 31872960

約数和(自身を除く): 18304120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 67, 83, 122, 134, 166, 244, 268, 305, 332, 335, 415, 488, 536, 610, 664, 670, 830, 1220, 1340, 1660, 2440, 2680, 3320, 4087, 5063, 5561, 8174, 10126, 11122, 16348, 20252, 20435, 22244, 25315, 27805, 32696, 40504, 40870, 44488, 50630, 55610, 81740, 101260, 111220, 163480, 202520, 222440, 339221, 678442, 1356884, 1696105, 2713768, 3392210, 6784420, 13568840]

約数ペア:

[(1, 13568840), (2, 6784420), (4, 3392210), (5, 2713768), (8, 1696105), (10, 1356884), (20, 678442), (40, 339221), (61, 222440), (67, 202520), (83, 163480), (122, 111220), (134, 101260), (166, 81740), (244, 55610), (268, 50630), (305, 44488), (332, 40870), (335, 40504), (415, 32696), (488, 27805), (536, 25315), (610, 22244), (664, 20435), (670, 20252), (830, 16348), (1220, 11122), (1340, 10126), (1660, 8174), (2440, 5561), (2680, 5063), (3320, 4087)]