12961775320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{408631}}^1$

素因数の和:408716

約数の個数: 64

約数和(自身を含む): 31922331840

約数和(自身を除く): 18960556520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 1220, 1586, 2440, 3172, 3965, 6344, 7930, 15860, 31720, 408631, 817262, 1634524, 2043155, 3269048, 4086310, 5312203, 8172620, 10624406, 16345240, 21248812, 24926491, 26561015, 42497624, 49852982, 53122030, 99705964, 106244060, 124632455, 199411928, 212488120, 249264910, 324044383, 498529820, 648088766, 997059640, 1296177532, 1620221915, 2592355064, 3240443830, 6480887660, 12961775320]

約数ペア:

[(1, 12961775320), (2, 6480887660), (4, 3240443830), (5, 2592355064), (8, 1620221915), (10, 1296177532), (13, 997059640), (20, 648088766), (26, 498529820), (40, 324044383), (52, 249264910), (61, 212488120), (65, 199411928), (104, 124632455), (122, 106244060), (130, 99705964), (244, 53122030), (260, 49852982), (305, 42497624), (488, 26561015), (520, 24926491), (610, 21248812), (793, 16345240), (1220, 10624406), (1586, 8172620), (2440, 5312203), (3172, 4086310), (3965, 3269048), (6344, 2043155), (7930, 1634524), (15860, 817262), (31720, 408631)]