311916540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1676

約数の個数: 144

約数和(自身を含む): 996105600

約数和(自身を除く): 684189060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 169, 190, 195, 228, 247, 260, 285, 338, 380, 390, 494, 507, 570, 676, 741, 780, 845, 988, 1014, 1140, 1235, 1482, 1619, 1690, 2028, 2470, 2535, 2964, 3211, 3238, 3380, 3705, 4857, 4940, 5070, 6422, 6476, 7410, 8095, 9633, 9714, 10140, 12844, 14820, 16055, 16190, 19266, 19428, 21047, 24285, 30761, 32110, 32380, 38532, 42094, 48165, 48570, 61522, 63141, 64220, 84188, 92283, 96330, 97140, 105235, 123044, 126282, 153805, 184566, 192660, 210470, 252564, 273611, 307610, 315705, 369132, 399893, 420940, 461415, 547222, 615220, 631410, 799786, 820833, 922830, 1094444, 1199679, 1262820, 1368055, 1599572, 1641666, 1845660, 1999465, 2399358, 2736110, 3283332, 3998930, 4104165, 4798716, 5198609, 5472220, 5998395, 7997860, 8208330, 10397218, 11996790, 15595827, 16416660, 20794436, 23993580, 25993045, 31191654, 51986090, 62383308, 77979135, 103972180, 155958270, 311916540]

約数ペア:

[(1, 311916540), (2, 155958270), (3, 103972180), (4, 77979135), (5, 62383308), (6, 51986090), (10, 31191654), (12, 25993045), (13, 23993580), (15, 20794436), (19, 16416660), (20, 15595827), (26, 11996790), (30, 10397218), (38, 8208330), (39, 7997860), (52, 5998395), (57, 5472220), (60, 5198609), (65, 4798716), (76, 4104165), (78, 3998930), (95, 3283332), (114, 2736110), (130, 2399358), (156, 1999465), (169, 1845660), (190, 1641666), (195, 1599572), (228, 1368055), (247, 1262820), (260, 1199679), (285, 1094444), (338, 922830), (380, 820833), (390, 799786), (494, 631410), (507, 615220), (570, 547222), (676, 461415), (741, 420940), (780, 399893), (845, 369132), (988, 315705), (1014, 307610), (1140, 273611), (1235, 252564), (1482, 210470), (1619, 192660), (1690, 184566), (2028, 153805), (2470, 126282), (2535, 123044), (2964, 105235), (3211, 97140), (3238, 96330), (3380, 92283), (3705, 84188), (4857, 64220), (4940, 63141), (5070, 61522), (6422, 48570), (6476, 48165), (7410, 42094), (8095, 38532), (9633, 32380), (9714, 32110), (10140, 30761), (12844, 24285), (14820, 21047), (16055, 19428), (16190, 19266)]