51789100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{89}}^1$

素因数の和:160

約数の個数: 108

約数和(自身を含む): 129601080

約数和(自身を除く): 77811980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 44, 46, 50, 55, 89, 92, 100, 110, 115, 178, 220, 230, 253, 275, 356, 445, 460, 506, 529, 550, 575, 890, 979, 1012, 1058, 1100, 1150, 1265, 1780, 1958, 2047, 2116, 2225, 2300, 2530, 2645, 3916, 4094, 4450, 4895, 5060, 5290, 5819, 6325, 8188, 8900, 9790, 10235, 10580, 11638, 12650, 13225, 19580, 20470, 22517, 23276, 24475, 25300, 26450, 29095, 40940, 45034, 47081, 48950, 51175, 52900, 58190, 90068, 94162, 97900, 102350, 112585, 116380, 145475, 188324, 204700, 225170, 235405, 290950, 450340, 470810, 517891, 562925, 581900, 941620, 1035782, 1125850, 1177025, 2071564, 2251700, 2354050, 2589455, 4708100, 5178910, 10357820, 12947275, 25894550, 51789100]

約数ペア:

[(1, 51789100), (2, 25894550), (4, 12947275), (5, 10357820), (10, 5178910), (11, 4708100), (20, 2589455), (22, 2354050), (23, 2251700), (25, 2071564), (44, 1177025), (46, 1125850), (50, 1035782), (55, 941620), (89, 581900), (92, 562925), (100, 517891), (110, 470810), (115, 450340), (178, 290950), (220, 235405), (230, 225170), (253, 204700), (275, 188324), (356, 145475), (445, 116380), (460, 112585), (506, 102350), (529, 97900), (550, 94162), (575, 90068), (890, 58190), (979, 52900), (1012, 51175), (1058, 48950), (1100, 47081), (1150, 45034), (1265, 40940), (1780, 29095), (1958, 26450), (2047, 25300), (2116, 24475), (2225, 23276), (2300, 22517), (2530, 20470), (2645, 19580), (3916, 13225), (4094, 12650), (4450, 11638), (4895, 10580), (5060, 10235), (5290, 9790), (5819, 8900), (6325, 8188)]