81306168

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 226176000

約数和(自身を除く): 144869832

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 37, 38, 57, 61, 74, 76, 79, 111, 114, 122, 148, 152, 158, 183, 222, 228, 237, 244, 296, 316, 366, 444, 456, 474, 488, 632, 703, 732, 888, 948, 1159, 1406, 1464, 1501, 1896, 2109, 2257, 2318, 2812, 2923, 3002, 3477, 4218, 4503, 4514, 4636, 4819, 5624, 5846, 6004, 6771, 6954, 8436, 8769, 9006, 9028, 9272, 9638, 11692, 12008, 13542, 13908, 14457, 16872, 17538, 18012, 18056, 19276, 23384, 27084, 27816, 28914, 35076, 36024, 38552, 42883, 54168, 55537, 57828, 70152, 85766, 91561, 111074, 115656, 128649, 166611, 171532, 178303, 183122, 222148, 257298, 274683, 333222, 343064, 356606, 366244, 444296, 514596, 534909, 549366, 666444, 713212, 732488, 1029192, 1069818, 1098732, 1332888, 1426424, 2139636, 2197464, 3387757, 4279272, 6775514, 10163271, 13551028, 20326542, 27102056, 40653084, 81306168]

約数ペア:

[(1, 81306168), (2, 40653084), (3, 27102056), (4, 20326542), (6, 13551028), (8, 10163271), (12, 6775514), (19, 4279272), (24, 3387757), (37, 2197464), (38, 2139636), (57, 1426424), (61, 1332888), (74, 1098732), (76, 1069818), (79, 1029192), (111, 732488), (114, 713212), (122, 666444), (148, 549366), (152, 534909), (158, 514596), (183, 444296), (222, 366244), (228, 356606), (237, 343064), (244, 333222), (296, 274683), (316, 257298), (366, 222148), (444, 183122), (456, 178303), (474, 171532), (488, 166611), (632, 128649), (703, 115656), (732, 111074), (888, 91561), (948, 85766), (1159, 70152), (1406, 57828), (1464, 55537), (1501, 54168), (1896, 42883), (2109, 38552), (2257, 36024), (2318, 35076), (2812, 28914), (2923, 27816), (3002, 27084), (3477, 23384), (4218, 19276), (4503, 18056), (4514, 18012), (4636, 17538), (4819, 16872), (5624, 14457), (5846, 13908), (6004, 13542), (6771, 12008), (6954, 11692), (8436, 9638), (8769, 9272), (9006, 9028)]