20986388028

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{161977}}^1$

素因数の和:162107

約数の個数: 72

約数和(自身を含む): 54832792560

約数和(自身を除く): 33846404532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 61, 118, 122, 177, 183, 236, 244, 354, 366, 531, 549, 708, 732, 1062, 1098, 2124, 2196, 3599, 7198, 10797, 14396, 21594, 32391, 43188, 64782, 129564, 161977, 323954, 485931, 647908, 971862, 1457793, 1943724, 2915586, 5831172, 9556643, 9880597, 19113286, 19761194, 28669929, 29641791, 38226572, 39522388, 57339858, 59283582, 86009787, 88925373, 114679716, 118567164, 172019574, 177850746, 344039148, 355701492, 582955223, 1165910446, 1748865669, 2331820892, 3497731338, 5246597007, 6995462676, 10493194014, 20986388028]

約数ペア:

[(1, 20986388028), (2, 10493194014), (3, 6995462676), (4, 5246597007), (6, 3497731338), (9, 2331820892), (12, 1748865669), (18, 1165910446), (36, 582955223), (59, 355701492), (61, 344039148), (118, 177850746), (122, 172019574), (177, 118567164), (183, 114679716), (236, 88925373), (244, 86009787), (354, 59283582), (366, 57339858), (531, 39522388), (549, 38226572), (708, 29641791), (732, 28669929), (1062, 19761194), (1098, 19113286), (2124, 9880597), (2196, 9556643), (3599, 5831172), (7198, 2915586), (10797, 1943724), (14396, 1457793), (21594, 971862), (32391, 647908), (43188, 485931), (64782, 323954), (129564, 161977)]