80616380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:136

約数の個数: 144

約数和(自身を含む): 205861824

約数和(自身を除く): 125245444

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 23, 26, 34, 46, 52, 61, 65, 68, 85, 92, 115, 122, 130, 169, 170, 221, 230, 244, 260, 299, 305, 338, 340, 391, 442, 460, 598, 610, 676, 782, 793, 845, 884, 1037, 1105, 1196, 1220, 1403, 1495, 1564, 1586, 1690, 1955, 2074, 2210, 2806, 2873, 2990, 3172, 3380, 3887, 3910, 3965, 4148, 4420, 5083, 5185, 5612, 5746, 5980, 7015, 7774, 7820, 7930, 10166, 10309, 10370, 11492, 13481, 14030, 14365, 15548, 15860, 18239, 19435, 20332, 20618, 20740, 23851, 25415, 26962, 28060, 28730, 36478, 38870, 41236, 47702, 50830, 51545, 53924, 57460, 66079, 67405, 72956, 77740, 91195, 95404, 101660, 103090, 119255, 132158, 134810, 175253, 182390, 206180, 237107, 238510, 264316, 269620, 310063, 330395, 350506, 364780, 474214, 477020, 620126, 660790, 701012, 876265, 948428, 1185535, 1240252, 1321580, 1550315, 1752530, 2371070, 3100630, 3505060, 4030819, 4742140, 6201260, 8061638, 16123276, 20154095, 40308190, 80616380]

約数ペア:

[(1, 80616380), (2, 40308190), (4, 20154095), (5, 16123276), (10, 8061638), (13, 6201260), (17, 4742140), (20, 4030819), (23, 3505060), (26, 3100630), (34, 2371070), (46, 1752530), (52, 1550315), (61, 1321580), (65, 1240252), (68, 1185535), (85, 948428), (92, 876265), (115, 701012), (122, 660790), (130, 620126), (169, 477020), (170, 474214), (221, 364780), (230, 350506), (244, 330395), (260, 310063), (299, 269620), (305, 264316), (338, 238510), (340, 237107), (391, 206180), (442, 182390), (460, 175253), (598, 134810), (610, 132158), (676, 119255), (782, 103090), (793, 101660), (845, 95404), (884, 91195), (1037, 77740), (1105, 72956), (1196, 67405), (1220, 66079), (1403, 57460), (1495, 53924), (1564, 51545), (1586, 50830), (1690, 47702), (1955, 41236), (2074, 38870), (2210, 36478), (2806, 28730), (2873, 28060), (2990, 26962), (3172, 25415), (3380, 23851), (3887, 20740), (3910, 20618), (3965, 20332), (4148, 19435), (4420, 18239), (5083, 15860), (5185, 15548), (5612, 14365), (5746, 14030), (5980, 13481), (7015, 11492), (7774, 10370), (7820, 10309), (7930, 10166)]