81020688

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:205

約数の個数: 160

約数和(自身を含む): 250936320

約数和(自身を除く): 169915632

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 59, 61, 67, 84, 112, 118, 122, 134, 168, 177, 183, 201, 236, 244, 268, 336, 354, 366, 402, 413, 427, 469, 472, 488, 536, 708, 732, 804, 826, 854, 938, 944, 976, 1072, 1239, 1281, 1407, 1416, 1464, 1608, 1652, 1708, 1876, 2478, 2562, 2814, 2832, 2928, 3216, 3304, 3416, 3599, 3752, 3953, 4087, 4956, 5124, 5628, 6608, 6832, 7198, 7504, 7906, 8174, 9912, 10248, 10797, 11256, 11859, 12261, 14396, 15812, 16348, 19824, 20496, 21594, 22512, 23718, 24522, 25193, 27671, 28609, 28792, 31624, 32696, 43188, 47436, 49044, 50386, 55342, 57218, 57584, 63248, 65392, 75579, 83013, 85827, 86376, 94872, 98088, 100772, 110684, 114436, 151158, 166026, 171654, 172752, 189744, 196176, 201544, 221368, 228872, 241133, 302316, 332052, 343308, 403088, 442736, 457744, 482266, 604632, 664104, 686616, 723399, 964532, 1209264, 1328208, 1373232, 1446798, 1687931, 1929064, 2893596, 3375862, 3858128, 5063793, 5787192, 6751724, 10127586, 11574384, 13503448, 20255172, 27006896, 40510344, 81020688]

約数ペア:

[(1, 81020688), (2, 40510344), (3, 27006896), (4, 20255172), (6, 13503448), (7, 11574384), (8, 10127586), (12, 6751724), (14, 5787192), (16, 5063793), (21, 3858128), (24, 3375862), (28, 2893596), (42, 1929064), (48, 1687931), (56, 1446798), (59, 1373232), (61, 1328208), (67, 1209264), (84, 964532), (112, 723399), (118, 686616), (122, 664104), (134, 604632), (168, 482266), (177, 457744), (183, 442736), (201, 403088), (236, 343308), (244, 332052), (268, 302316), (336, 241133), (354, 228872), (366, 221368), (402, 201544), (413, 196176), (427, 189744), (469, 172752), (472, 171654), (488, 166026), (536, 151158), (708, 114436), (732, 110684), (804, 100772), (826, 98088), (854, 94872), (938, 86376), (944, 85827), (976, 83013), (1072, 75579), (1239, 65392), (1281, 63248), (1407, 57584), (1416, 57218), (1464, 55342), (1608, 50386), (1652, 49044), (1708, 47436), (1876, 43188), (2478, 32696), (2562, 31624), (2814, 28792), (2832, 28609), (2928, 27671), (3216, 25193), (3304, 24522), (3416, 23718), (3599, 22512), (3752, 21594), (3953, 20496), (4087, 19824), (4956, 16348), (5124, 15812), (5628, 14396), (6608, 12261), (6832, 11859), (7198, 11256), (7504, 10797), (7906, 10248), (8174, 9912)]