81538956

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 232727040

約数和(自身を除く): 151188084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 23, 36, 38, 46, 57, 69, 71, 73, 76, 92, 114, 138, 142, 146, 171, 207, 213, 219, 228, 276, 284, 292, 342, 414, 426, 437, 438, 639, 657, 684, 828, 852, 874, 876, 1278, 1311, 1314, 1349, 1387, 1633, 1679, 1748, 2556, 2622, 2628, 2698, 2774, 3266, 3358, 3933, 4047, 4161, 4899, 5037, 5183, 5244, 5396, 5548, 6532, 6716, 7866, 8094, 8322, 9798, 10074, 10366, 12141, 12483, 14697, 15111, 15549, 15732, 16188, 16644, 19596, 20148, 20732, 24282, 24966, 29394, 30222, 31027, 31098, 31901, 46647, 48564, 49932, 58788, 60444, 62054, 62196, 63802, 93081, 93294, 95703, 98477, 119209, 124108, 127604, 186162, 186588, 191406, 196954, 238418, 279243, 287109, 295431, 357627, 372324, 382812, 393908, 476836, 558486, 574218, 590862, 715254, 886293, 1072881, 1116972, 1148436, 1181724, 1430508, 1772586, 2145762, 2264971, 3545172, 4291524, 4529942, 6794913, 9059884, 13589826, 20384739, 27179652, 40769478, 81538956]

約数ペア:

[(1, 81538956), (2, 40769478), (3, 27179652), (4, 20384739), (6, 13589826), (9, 9059884), (12, 6794913), (18, 4529942), (19, 4291524), (23, 3545172), (36, 2264971), (38, 2145762), (46, 1772586), (57, 1430508), (69, 1181724), (71, 1148436), (73, 1116972), (76, 1072881), (92, 886293), (114, 715254), (138, 590862), (142, 574218), (146, 558486), (171, 476836), (207, 393908), (213, 382812), (219, 372324), (228, 357627), (276, 295431), (284, 287109), (292, 279243), (342, 238418), (414, 196954), (426, 191406), (437, 186588), (438, 186162), (639, 127604), (657, 124108), (684, 119209), (828, 98477), (852, 95703), (874, 93294), (876, 93081), (1278, 63802), (1311, 62196), (1314, 62054), (1349, 60444), (1387, 58788), (1633, 49932), (1679, 48564), (1748, 46647), (2556, 31901), (2622, 31098), (2628, 31027), (2698, 30222), (2774, 29394), (3266, 24966), (3358, 24282), (3933, 20732), (4047, 20148), (4161, 19596), (4899, 16644), (5037, 16188), (5183, 15732), (5244, 15549), (5396, 15111), (5548, 14697), (6532, 12483), (6716, 12141), (7866, 10366), (8094, 10074), (8322, 9798)]