81873666

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:206

約数の個数: 160

約数和(自身を含む): 230833152

約数和(自身を除く): 148959486

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 27, 31, 34, 42, 51, 54, 62, 63, 81, 93, 102, 119, 126, 137, 153, 162, 186, 189, 217, 238, 274, 279, 306, 357, 378, 411, 434, 459, 527, 558, 567, 651, 714, 822, 837, 918, 959, 1054, 1071, 1134, 1233, 1302, 1377, 1581, 1674, 1918, 1953, 2142, 2329, 2466, 2511, 2754, 2877, 3162, 3213, 3689, 3699, 3906, 4247, 4658, 4743, 5022, 5754, 5859, 6426, 6987, 7378, 7398, 8494, 8631, 9486, 9639, 11067, 11097, 11718, 12741, 13974, 14229, 16303, 17262, 17577, 19278, 20961, 22134, 22194, 25482, 25893, 28458, 29729, 32606, 33201, 35154, 38223, 41922, 42687, 48909, 51786, 59458, 62883, 66402, 72199, 76446, 77679, 85374, 89187, 97818, 99603, 114669, 125766, 144398, 146727, 155358, 178374, 188649, 199206, 216597, 229338, 267561, 293454, 298809, 344007, 377298, 433194, 440181, 505393, 535122, 597618, 649791, 688014, 802683, 880362, 1010786, 1299582, 1320543, 1516179, 1605366, 1949373, 2408049, 2641086, 3032358, 3898746, 4548537, 4816098, 5848119, 9097074, 11696238, 13645611, 27291222, 40936833, 81873666]

約数ペア:

[(1, 81873666), (2, 40936833), (3, 27291222), (6, 13645611), (7, 11696238), (9, 9097074), (14, 5848119), (17, 4816098), (18, 4548537), (21, 3898746), (27, 3032358), (31, 2641086), (34, 2408049), (42, 1949373), (51, 1605366), (54, 1516179), (62, 1320543), (63, 1299582), (81, 1010786), (93, 880362), (102, 802683), (119, 688014), (126, 649791), (137, 597618), (153, 535122), (162, 505393), (186, 440181), (189, 433194), (217, 377298), (238, 344007), (274, 298809), (279, 293454), (306, 267561), (357, 229338), (378, 216597), (411, 199206), (434, 188649), (459, 178374), (527, 155358), (558, 146727), (567, 144398), (651, 125766), (714, 114669), (822, 99603), (837, 97818), (918, 89187), (959, 85374), (1054, 77679), (1071, 76446), (1134, 72199), (1233, 66402), (1302, 62883), (1377, 59458), (1581, 51786), (1674, 48909), (1918, 42687), (1953, 41922), (2142, 38223), (2329, 35154), (2466, 33201), (2511, 32606), (2754, 29729), (2877, 28458), (3162, 25893), (3213, 25482), (3689, 22194), (3699, 22134), (3906, 20961), (4247, 19278), (4658, 17577), (4743, 17262), (5022, 16303), (5754, 14229), (5859, 13974), (6426, 12741), (6987, 11718), (7378, 11097), (7398, 11067), (8494, 9639), (8631, 9486)]