81355428

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1087}}^1$

素因数の和:1124

約数の個数: 144

約数和(自身を含む): 266133504

約数和(自身を除く): 184778076

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 33, 36, 42, 44, 54, 63, 66, 77, 81, 84, 99, 108, 126, 132, 154, 162, 189, 198, 231, 243, 252, 297, 308, 324, 378, 396, 462, 486, 567, 594, 693, 756, 891, 924, 972, 1087, 1134, 1188, 1386, 1701, 1782, 2079, 2174, 2268, 2673, 2772, 3261, 3402, 3564, 4158, 4348, 5346, 6237, 6522, 6804, 7609, 8316, 9783, 10692, 11957, 12474, 13044, 15218, 18711, 19566, 22827, 23914, 24948, 29349, 30436, 35871, 37422, 39132, 45654, 47828, 58698, 68481, 71742, 74844, 83699, 88047, 91308, 107613, 117396, 136962, 143484, 167398, 176094, 205443, 215226, 251097, 264141, 273924, 322839, 334796, 352188, 410886, 430452, 502194, 528282, 616329, 645678, 753291, 821772, 968517, 1004388, 1056564, 1232658, 1291356, 1506582, 1848987, 1937034, 2259873, 2465316, 2905551, 3013164, 3697974, 3874068, 4519746, 5811102, 6779619, 7395948, 9039492, 11622204, 13559238, 20338857, 27118476, 40677714, 81355428]

約数ペア:

[(1, 81355428), (2, 40677714), (3, 27118476), (4, 20338857), (6, 13559238), (7, 11622204), (9, 9039492), (11, 7395948), (12, 6779619), (14, 5811102), (18, 4519746), (21, 3874068), (22, 3697974), (27, 3013164), (28, 2905551), (33, 2465316), (36, 2259873), (42, 1937034), (44, 1848987), (54, 1506582), (63, 1291356), (66, 1232658), (77, 1056564), (81, 1004388), (84, 968517), (99, 821772), (108, 753291), (126, 645678), (132, 616329), (154, 528282), (162, 502194), (189, 430452), (198, 410886), (231, 352188), (243, 334796), (252, 322839), (297, 273924), (308, 264141), (324, 251097), (378, 215226), (396, 205443), (462, 176094), (486, 167398), (567, 143484), (594, 136962), (693, 117396), (756, 107613), (891, 91308), (924, 88047), (972, 83699), (1087, 74844), (1134, 71742), (1188, 68481), (1386, 58698), (1701, 47828), (1782, 45654), (2079, 39132), (2174, 37422), (2268, 35871), (2673, 30436), (2772, 29349), (3261, 24948), (3402, 23914), (3564, 22827), (4158, 19566), (4348, 18711), (5346, 15218), (6237, 13044), (6522, 12474), (6804, 11957), (7609, 10692), (8316, 9783)]