81557880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{35771}}^1$

素因数の和:35804

約数の個数: 64

約数和(自身を含む): 257558400

約数和(自身を除く): 176000520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 35771, 71542, 107313, 143084, 178855, 214626, 286168, 357710, 429252, 536565, 679649, 715420, 858504, 1073130, 1359298, 1430840, 2038947, 2146260, 2718596, 3398245, 4077894, 4292520, 5437192, 6796490, 8155788, 10194735, 13592980, 16311576, 20389470, 27185960, 40778940, 81557880]

約数ペア:

[(1, 81557880), (2, 40778940), (3, 27185960), (4, 20389470), (5, 16311576), (6, 13592980), (8, 10194735), (10, 8155788), (12, 6796490), (15, 5437192), (19, 4292520), (20, 4077894), (24, 3398245), (30, 2718596), (38, 2146260), (40, 2038947), (57, 1430840), (60, 1359298), (76, 1073130), (95, 858504), (114, 715420), (120, 679649), (152, 536565), (190, 429252), (228, 357710), (285, 286168), (380, 214626), (456, 178855), (570, 143084), (760, 107313), (1140, 71542), (2280, 35771)]