291036680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1123}}^1$

素因数の和:1195

約数の個数: 128

約数和(自身を含む): 776908800

約数和(自身を除く): 485872120

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 31, 38, 40, 44, 55, 62, 76, 88, 95, 110, 124, 152, 155, 190, 209, 220, 248, 310, 341, 380, 418, 440, 589, 620, 682, 760, 836, 1045, 1123, 1178, 1240, 1364, 1672, 1705, 2090, 2246, 2356, 2728, 2945, 3410, 4180, 4492, 4712, 5615, 5890, 6479, 6820, 8360, 8984, 11230, 11780, 12353, 12958, 13640, 21337, 22460, 23560, 24706, 25916, 32395, 34813, 42674, 44920, 49412, 51832, 61765, 64790, 69626, 85348, 98824, 106685, 123530, 129580, 139252, 170696, 174065, 213370, 234707, 247060, 259160, 278504, 348130, 382943, 426740, 469414, 494120, 661447, 696260, 765886, 853480, 938828, 1173535, 1322894, 1392520, 1531772, 1877656, 1914715, 2347070, 2645788, 3063544, 3307235, 3829430, 4694140, 5291576, 6614470, 7275917, 7658860, 9388280, 13228940, 14551834, 15317720, 26457880, 29103668, 36379585, 58207336, 72759170, 145518340, 291036680]

約数ペア:

[(1, 291036680), (2, 145518340), (4, 72759170), (5, 58207336), (8, 36379585), (10, 29103668), (11, 26457880), (19, 15317720), (20, 14551834), (22, 13228940), (31, 9388280), (38, 7658860), (40, 7275917), (44, 6614470), (55, 5291576), (62, 4694140), (76, 3829430), (88, 3307235), (95, 3063544), (110, 2645788), (124, 2347070), (152, 1914715), (155, 1877656), (190, 1531772), (209, 1392520), (220, 1322894), (248, 1173535), (310, 938828), (341, 853480), (380, 765886), (418, 696260), (440, 661447), (589, 494120), (620, 469414), (682, 426740), (760, 382943), (836, 348130), (1045, 278504), (1123, 259160), (1178, 247060), (1240, 234707), (1364, 213370), (1672, 174065), (1705, 170696), (2090, 139252), (2246, 129580), (2356, 123530), (2728, 106685), (2945, 98824), (3410, 85348), (4180, 69626), (4492, 64790), (4712, 61765), (5615, 51832), (5890, 49412), (6479, 44920), (6820, 42674), (8360, 34813), (8984, 32395), (11230, 25916), (11780, 24706), (12353, 23560), (12958, 22460), (13640, 21337)]