20178026325

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1\times {\mathrm{449}}^1$

素因数の和:892

約数の個数: 144

約数和(自身を含む): 39693888000

約数和(自身を除く): 19515861675

約数列:

[1, 3, 5, 9, 15, 17, 25, 31, 45, 51, 75, 85, 93, 153, 155, 225, 255, 279, 379, 425, 449, 465, 527, 765, 775, 1137, 1275, 1347, 1395, 1581, 1895, 2245, 2325, 2635, 3411, 3825, 4041, 4743, 5685, 6443, 6735, 6975, 7633, 7905, 9475, 11225, 11749, 13175, 13919, 17055, 19329, 20205, 22899, 23715, 28425, 32215, 33675, 35247, 38165, 39525, 41757, 57987, 58745, 68697, 69595, 85275, 96645, 101025, 105741, 114495, 118575, 125271, 161075, 170171, 176235, 190825, 199733, 208785, 236623, 289935, 293725, 343485, 347975, 483225, 510513, 528705, 572475, 599199, 626355, 709869, 850855, 881175, 998665, 1043925, 1183115, 1449675, 1531539, 1717425, 1797597, 2129607, 2552565, 2643525, 2892907, 2995995, 3131775, 3549345, 4254275, 4993325, 5275301, 5915575, 7657695, 8678721, 8987985, 10648035, 12762825, 14464535, 14979975, 15825903, 17746725, 26036163, 26376505, 38288475, 43393605, 44939925, 47477709, 53240175, 72322675, 79129515, 89680117, 130180815, 131882525, 216968025, 237388545, 269040351, 395647575, 448400585, 650904075, 807121053, 1186942725, 1345201755, 2242002925, 4035605265, 6726008775, 20178026325]

約数ペア:

[(1, 20178026325), (3, 6726008775), (5, 4035605265), (9, 2242002925), (15, 1345201755), (17, 1186942725), (25, 807121053), (31, 650904075), (45, 448400585), (51, 395647575), (75, 269040351), (85, 237388545), (93, 216968025), (153, 131882525), (155, 130180815), (225, 89680117), (255, 79129515), (279, 72322675), (379, 53240175), (425, 47477709), (449, 44939925), (465, 43393605), (527, 38288475), (765, 26376505), (775, 26036163), (1137, 17746725), (1275, 15825903), (1347, 14979975), (1395, 14464535), (1581, 12762825), (1895, 10648035), (2245, 8987985), (2325, 8678721), (2635, 7657695), (3411, 5915575), (3825, 5275301), (4041, 4993325), (4743, 4254275), (5685, 3549345), (6443, 3131775), (6735, 2995995), (6975, 2892907), (7633, 2643525), (7905, 2552565), (9475, 2129607), (11225, 1797597), (11749, 1717425), (13175, 1531539), (13919, 1449675), (17055, 1183115), (19329, 1043925), (20205, 998665), (22899, 881175), (23715, 850855), (28425, 709869), (32215, 626355), (33675, 599199), (35247, 572475), (38165, 528705), (39525, 510513), (41757, 483225), (57987, 347975), (58745, 343485), (68697, 293725), (69595, 289935), (85275, 236623), (96645, 208785), (101025, 199733), (105741, 190825), (114495, 176235), (118575, 170171), (125271, 161075)]