2105156680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{8123}}^1$

素因数の和:8195

約数の個数: 128

約数和(自身を含む): 5615308800

約数和(自身を除く): 3510152120

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, 1178, 1240, 1364, 1672, 1705, 2090, 2356, 2728, 2945, 3410, 4180, 4712, 5890, 6479, 6820, 8123, 8360, 11780, 12958, 13640, 16246, 23560, 25916, 32395, 32492, 40615, 51832, 64790, 64984, 81230, 89353, 129580, 154337, 162460, 178706, 251813, 259160, 308674, 324920, 357412, 446765, 503626, 617348, 714824, 771685, 893530, 1007252, 1234696, 1259065, 1543370, 1697707, 1787060, 2014504, 2518130, 2769943, 3086740, 3395414, 3574120, 4784447, 5036260, 5539886, 6173480, 6790828, 8488535, 9568894, 10072520, 11079772, 13581656, 13849715, 16977070, 19137788, 22159544, 23922235, 27699430, 33954140, 38275576, 47844470, 52628917, 55398860, 67908280, 95688940, 105257834, 110797720, 191377880, 210515668, 263144585, 421031336, 526289170, 1052578340, 2105156680]

約数ペア:

[(1, 2105156680), (2, 1052578340), (4, 526289170), (5, 421031336), (8, 263144585), (10, 210515668), (11, 191377880), (19, 110797720), (20, 105257834), (22, 95688940), (31, 67908280), (38, 55398860), (40, 52628917), (44, 47844470), (55, 38275576), (62, 33954140), (76, 27699430), (88, 23922235), (95, 22159544), (110, 19137788), (124, 16977070), (152, 13849715), (155, 13581656), (190, 11079772), (209, 10072520), (220, 9568894), (248, 8488535), (310, 6790828), (341, 6173480), (380, 5539886), (418, 5036260), (440, 4784447), (589, 3574120), (620, 3395414), (682, 3086740), (760, 2769943), (836, 2518130), (1045, 2014504), (1178, 1787060), (1240, 1697707), (1364, 1543370), (1672, 1259065), (1705, 1234696), (2090, 1007252), (2356, 893530), (2728, 771685), (2945, 714824), (3410, 617348), (4180, 503626), (4712, 446765), (5890, 357412), (6479, 324920), (6820, 308674), (8123, 259160), (8360, 251813), (11780, 178706), (12958, 162460), (13640, 154337), (16246, 129580), (23560, 89353), (25916, 81230), (32395, 64984), (32492, 64790), (40615, 51832)]