13215280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:254

約数の個数: 80

約数和(自身を含む): 33685344

約数和(自身を除く): 20470064

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 131, 194, 208, 260, 262, 388, 485, 520, 524, 655, 776, 970, 1040, 1048, 1261, 1310, 1552, 1703, 1940, 2096, 2522, 2620, 3406, 3880, 5044, 5240, 6305, 6812, 7760, 8515, 10088, 10480, 12610, 12707, 13624, 17030, 20176, 25220, 25414, 27248, 34060, 50440, 50828, 63535, 68120, 100880, 101656, 127070, 136240, 165191, 203312, 254140, 330382, 508280, 660764, 825955, 1016560, 1321528, 1651910, 2643056, 3303820, 6607640, 13215280]

約数ペア:

[(1, 13215280), (2, 6607640), (4, 3303820), (5, 2643056), (8, 1651910), (10, 1321528), (13, 1016560), (16, 825955), (20, 660764), (26, 508280), (40, 330382), (52, 254140), (65, 203312), (80, 165191), (97, 136240), (104, 127070), (130, 101656), (131, 100880), (194, 68120), (208, 63535), (260, 50828), (262, 50440), (388, 34060), (485, 27248), (520, 25414), (524, 25220), (655, 20176), (776, 17030), (970, 13624), (1040, 12707), (1048, 12610), (1261, 10480), (1310, 10088), (1552, 8515), (1703, 7760), (1940, 6812), (2096, 6305), (2522, 5240), (2620, 5044), (3406, 3880)]