20039920688

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{494471}}^1$

素因数の和:494645

約数の個数: 40

約数和(自身を含む): 41387306400

約数和(自身を除く): 21347385712

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 149, 272, 298, 596, 1192, 2384, 2533, 5066, 10132, 20264, 40528, 494471, 988942, 1977884, 3955768, 7911536, 8406007, 16812014, 33624028, 67248056, 73676179, 134496112, 147352358, 294704716, 589409432, 1178818864, 1252495043, 2504990086, 5009980172, 10019960344, 20039920688]

約数ペア:

[(1, 20039920688), (2, 10019960344), (4, 5009980172), (8, 2504990086), (16, 1252495043), (17, 1178818864), (34, 589409432), (68, 294704716), (136, 147352358), (149, 134496112), (272, 73676179), (298, 67248056), (596, 33624028), (1192, 16812014), (2384, 8406007), (2533, 7911536), (5066, 3955768), (10132, 1977884), (20264, 988942), (40528, 494471)]