131728917328

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{2729}}^1$

素因数の和:2973

約数の個数: 120

約数和(自身を含む): 275879920680

約数和(自身を除く): 144151003352

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 76, 122, 137, 152, 244, 274, 304, 361, 488, 548, 722, 976, 1096, 1159, 1444, 2192, 2318, 2603, 2729, 2888, 4636, 5206, 5458, 5776, 8357, 9272, 10412, 10916, 16714, 18544, 20824, 21832, 22021, 33428, 41648, 43664, 44042, 49457, 51851, 66856, 88084, 98914, 103702, 133712, 158783, 166469, 176168, 197828, 207404, 317566, 332938, 352336, 373873, 395656, 414808, 635132, 665876, 747746, 791312, 829616, 985169, 1270264, 1331752, 1495492, 1970338, 2540528, 2663504, 2990984, 3016877, 3162911, 3940676, 5981968, 6033754, 6325822, 7103587, 7881352, 12067508, 12651644, 14207174, 15762704, 22806253, 24135016, 25303288, 28414348, 45612506, 48270032, 50606576, 56828696, 60095309, 91225012, 113657392, 120190618, 134968153, 182450024, 240381236, 269936306, 364900048, 433318807, 480762472, 539872612, 866637614, 961524944, 1079745224, 1733275228, 2159490448, 3466550456, 6933100912, 8233057333, 16466114666, 32932229332, 65864458664, 131728917328]

約数ペア:

[(1, 131728917328), (2, 65864458664), (4, 32932229332), (8, 16466114666), (16, 8233057333), (19, 6933100912), (38, 3466550456), (61, 2159490448), (76, 1733275228), (122, 1079745224), (137, 961524944), (152, 866637614), (244, 539872612), (274, 480762472), (304, 433318807), (361, 364900048), (488, 269936306), (548, 240381236), (722, 182450024), (976, 134968153), (1096, 120190618), (1159, 113657392), (1444, 91225012), (2192, 60095309), (2318, 56828696), (2603, 50606576), (2729, 48270032), (2888, 45612506), (4636, 28414348), (5206, 25303288), (5458, 24135016), (5776, 22806253), (8357, 15762704), (9272, 14207174), (10412, 12651644), (10916, 12067508), (16714, 7881352), (18544, 7103587), (20824, 6325822), (21832, 6033754), (22021, 5981968), (33428, 3940676), (41648, 3162911), (43664, 3016877), (44042, 2990984), (49457, 2663504), (51851, 2540528), (66856, 1970338), (88084, 1495492), (98914, 1331752), (103702, 1270264), (133712, 985169), (158783, 829616), (166469, 791312), (176168, 747746), (197828, 665876), (207404, 635132), (317566, 414808), (332938, 395656), (352336, 373873)]