1215118515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1\times {\mathrm{283}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 2132153856

約数和(自身を除く): 917035341

約数列:

[1, 3, 5, 13, 15, 39, 65, 97, 195, 227, 283, 291, 485, 681, 849, 1135, 1261, 1415, 1455, 2951, 3405, 3679, 3783, 4245, 6305, 8853, 11037, 14755, 18395, 18915, 22019, 27451, 44265, 55185, 64241, 66057, 82353, 110095, 137255, 192723, 286247, 321205, 330285, 356863, 411765, 835133, 858741, 963615, 1070589, 1431235, 1784315, 2505399, 4175665, 4293705, 5352945, 6231377, 12526995, 18694131, 31156885, 81007901, 93470655, 243023703, 405039505, 1215118515]

約数ペア:

[(1, 1215118515), (3, 405039505), (5, 243023703), (13, 93470655), (15, 81007901), (39, 31156885), (65, 18694131), (97, 12526995), (195, 6231377), (227, 5352945), (283, 4293705), (291, 4175665), (485, 2505399), (681, 1784315), (849, 1431235), (1135, 1070589), (1261, 963615), (1415, 858741), (1455, 835133), (2951, 411765), (3405, 356863), (3679, 330285), (3783, 321205), (4245, 286247), (6305, 192723), (8853, 137255), (11037, 110095), (14755, 82353), (18395, 66057), (18915, 64241), (22019, 55185), (27451, 44265)]