15721858940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{13759}}^1$

素因数の和:13915

約数の個数: 96

約数和(自身を含む): 36247142400

約数和(自身を除く): 20525283460

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 97, 124, 155, 190, 194, 310, 380, 388, 485, 589, 620, 970, 1178, 1843, 1940, 2356, 2945, 3007, 3686, 5890, 6014, 7372, 9215, 11780, 12028, 13759, 15035, 18430, 27518, 30070, 36860, 55036, 57133, 60140, 68795, 114266, 137590, 228532, 261421, 275180, 285665, 426529, 522842, 571330, 853058, 1045684, 1142660, 1307105, 1334623, 1706116, 2132645, 2614210, 2669246, 4265290, 5228420, 5338492, 6673115, 8104051, 8530580, 13346230, 16208102, 25357837, 26692460, 32416204, 40520255, 41373313, 50715674, 81040510, 82746626, 101431348, 126789185, 162081020, 165493252, 206866565, 253578370, 413733130, 507156740, 786092947, 827466260, 1572185894, 3144371788, 3930464735, 7860929470, 15721858940]

約数ペア:

[(1, 15721858940), (2, 7860929470), (4, 3930464735), (5, 3144371788), (10, 1572185894), (19, 827466260), (20, 786092947), (31, 507156740), (38, 413733130), (62, 253578370), (76, 206866565), (95, 165493252), (97, 162081020), (124, 126789185), (155, 101431348), (190, 82746626), (194, 81040510), (310, 50715674), (380, 41373313), (388, 40520255), (485, 32416204), (589, 26692460), (620, 25357837), (970, 16208102), (1178, 13346230), (1843, 8530580), (1940, 8104051), (2356, 6673115), (2945, 5338492), (3007, 5228420), (3686, 4265290), (5890, 2669246), (6014, 2614210), (7372, 2132645), (9215, 1706116), (11780, 1334623), (12028, 1307105), (13759, 1142660), (15035, 1045684), (18430, 853058), (27518, 571330), (30070, 522842), (36860, 426529), (55036, 285665), (57133, 275180), (60140, 261421), (68795, 228532), (114266, 137590)]