256738897720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1\times {\mathrm{6779}}^1$

素因数の和:7157

約数の個数: 128

約数和(自身を含む): 599909587200

約数和(自身を除く): 343170689480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 97, 172, 194, 215, 227, 344, 388, 430, 454, 485, 776, 860, 908, 970, 1135, 1720, 1816, 1940, 2270, 3880, 4171, 4540, 6779, 8342, 9080, 9761, 13558, 16684, 19522, 20855, 22019, 27116, 33368, 33895, 39044, 41710, 44038, 48805, 54232, 67790, 78088, 83420, 88076, 97610, 110095, 135580, 166840, 176152, 195220, 220190, 271160, 291497, 390440, 440380, 582994, 657563, 880760, 946817, 1165988, 1315126, 1457485, 1538833, 1893634, 2331976, 2630252, 2914970, 3077666, 3287815, 3787268, 4734085, 5260504, 5829940, 6155332, 6575630, 7574536, 7694165, 9468170, 11659880, 12310664, 13151260, 15388330, 18936340, 26302520, 28275209, 30776660, 37872680, 56550418, 61553320, 66169819, 113100836, 132339638, 141376045, 149266801, 226201672, 264679276, 282752090, 298533602, 330849095, 529358552, 565504180, 597067204, 661698190, 746334005, 1131008360, 1194134408, 1323396380, 1492668010, 2646792760, 2985336020, 5970672040, 6418472443, 12836944886, 25673889772, 32092362215, 51347779544, 64184724430, 128369448860, 256738897720]

約数ペア:

[(1, 256738897720), (2, 128369448860), (4, 64184724430), (5, 51347779544), (8, 32092362215), (10, 25673889772), (20, 12836944886), (40, 6418472443), (43, 5970672040), (86, 2985336020), (97, 2646792760), (172, 1492668010), (194, 1323396380), (215, 1194134408), (227, 1131008360), (344, 746334005), (388, 661698190), (430, 597067204), (454, 565504180), (485, 529358552), (776, 330849095), (860, 298533602), (908, 282752090), (970, 264679276), (1135, 226201672), (1720, 149266801), (1816, 141376045), (1940, 132339638), (2270, 113100836), (3880, 66169819), (4171, 61553320), (4540, 56550418), (6779, 37872680), (8342, 30776660), (9080, 28275209), (9761, 26302520), (13558, 18936340), (16684, 15388330), (19522, 13151260), (20855, 12310664), (22019, 11659880), (27116, 9468170), (33368, 7694165), (33895, 7574536), (39044, 6575630), (41710, 6155332), (44038, 5829940), (48805, 5260504), (54232, 4734085), (67790, 3787268), (78088, 3287815), (83420, 3077666), (88076, 2914970), (97610, 2630252), (110095, 2331976), (135580, 1893634), (166840, 1538833), (176152, 1457485), (195220, 1315126), (220190, 1165988), (271160, 946817), (291497, 880760), (390440, 657563), (440380, 582994)]