221553280

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{859}}^1$

素因数の和:922

約数の個数: 128

約数和(自身を含む): 589478400

約数和(自身を除く): 367925120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 859, 992, 1040, 1240, 1612, 1664, 1718, 1984, 2015, 2080, 2480, 3224, 3436, 3968, 4030, 4160, 4295, 4960, 6448, 6872, 8060, 8320, 8590, 9920, 11167, 12896, 13744, 16120, 17180, 19840, 22334, 25792, 26629, 27488, 32240, 34360, 44668, 51584, 53258, 54976, 55835, 64480, 68720, 89336, 106516, 109952, 111670, 128960, 133145, 137440, 178672, 213032, 223340, 257920, 266290, 274880, 346177, 357344, 426064, 446680, 532580, 549760, 692354, 714688, 852128, 893360, 1065160, 1384708, 1429376, 1704256, 1730885, 1786720, 2130320, 2769416, 3408512, 3461770, 3573440, 4260640, 5538832, 6923540, 7146880, 8521280, 11077664, 13847080, 17042560, 22155328, 27694160, 44310656, 55388320, 110776640, 221553280]

約数ペア:

[(1, 221553280), (2, 110776640), (4, 55388320), (5, 44310656), (8, 27694160), (10, 22155328), (13, 17042560), (16, 13847080), (20, 11077664), (26, 8521280), (31, 7146880), (32, 6923540), (40, 5538832), (52, 4260640), (62, 3573440), (64, 3461770), (65, 3408512), (80, 2769416), (104, 2130320), (124, 1786720), (128, 1730885), (130, 1704256), (155, 1429376), (160, 1384708), (208, 1065160), (248, 893360), (260, 852128), (310, 714688), (320, 692354), (403, 549760), (416, 532580), (496, 446680), (520, 426064), (620, 357344), (640, 346177), (806, 274880), (832, 266290), (859, 257920), (992, 223340), (1040, 213032), (1240, 178672), (1612, 137440), (1664, 133145), (1718, 128960), (1984, 111670), (2015, 109952), (2080, 106516), (2480, 89336), (3224, 68720), (3436, 64480), (3968, 55835), (4030, 54976), (4160, 53258), (4295, 51584), (4960, 44668), (6448, 34360), (6872, 32240), (8060, 27488), (8320, 26629), (8590, 25792), (9920, 22334), (11167, 19840), (12896, 17180), (13744, 16120)]