78471900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:405

約数の個数: 216

約数和(自身を含む): 279617520

約数和(自身を除く): 201145620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 25, 26, 30, 36, 38, 39, 45, 50, 52, 57, 60, 65, 75, 76, 78, 90, 95, 100, 114, 117, 130, 150, 156, 171, 180, 190, 195, 225, 228, 234, 247, 260, 285, 300, 325, 342, 353, 380, 390, 450, 468, 475, 494, 570, 585, 650, 684, 706, 741, 780, 855, 900, 950, 975, 988, 1059, 1140, 1170, 1235, 1300, 1412, 1425, 1482, 1710, 1765, 1900, 1950, 2118, 2223, 2340, 2470, 2850, 2925, 2964, 3177, 3420, 3530, 3705, 3900, 4236, 4275, 4446, 4589, 4940, 5295, 5700, 5850, 6175, 6354, 6707, 7060, 7410, 8550, 8825, 8892, 9178, 10590, 11115, 11700, 12350, 12708, 13414, 13767, 14820, 15885, 17100, 17650, 18356, 18525, 20121, 21180, 22230, 22945, 24700, 26475, 26828, 27534, 31770, 33535, 35300, 37050, 40242, 41301, 44460, 45890, 52950, 55068, 55575, 60363, 63540, 67070, 68835, 74100, 79425, 80484, 82602, 87191, 91780, 100605, 105900, 111150, 114725, 120726, 134140, 137670, 158850, 165204, 167675, 174382, 201210, 206505, 222300, 229450, 241452, 261573, 275340, 301815, 317700, 335350, 344175, 348764, 402420, 413010, 435955, 458900, 503025, 523146, 603630, 670700, 688350, 784719, 826020, 871910, 1006050, 1032525, 1046292, 1207260, 1307865, 1376700, 1509075, 1569438, 1743820, 2012100, 2065050, 2179775, 2615730, 3018150, 3138876, 3923595, 4130100, 4359550, 5231460, 6036300, 6539325, 7847190, 8719100, 13078650, 15694380, 19617975, 26157300, 39235950, 78471900]

約数ペア:

[(1, 78471900), (2, 39235950), (3, 26157300), (4, 19617975), (5, 15694380), (6, 13078650), (9, 8719100), (10, 7847190), (12, 6539325), (13, 6036300), (15, 5231460), (18, 4359550), (19, 4130100), (20, 3923595), (25, 3138876), (26, 3018150), (30, 2615730), (36, 2179775), (38, 2065050), (39, 2012100), (45, 1743820), (50, 1569438), (52, 1509075), (57, 1376700), (60, 1307865), (65, 1207260), (75, 1046292), (76, 1032525), (78, 1006050), (90, 871910), (95, 826020), (100, 784719), (114, 688350), (117, 670700), (130, 603630), (150, 523146), (156, 503025), (171, 458900), (180, 435955), (190, 413010), (195, 402420), (225, 348764), (228, 344175), (234, 335350), (247, 317700), (260, 301815), (285, 275340), (300, 261573), (325, 241452), (342, 229450), (353, 222300), (380, 206505), (390, 201210), (450, 174382), (468, 167675), (475, 165204), (494, 158850), (570, 137670), (585, 134140), (650, 120726), (684, 114725), (706, 111150), (741, 105900), (780, 100605), (855, 91780), (900, 87191), (950, 82602), (975, 80484), (988, 79425), (1059, 74100), (1140, 68835), (1170, 67070), (1235, 63540), (1300, 60363), (1412, 55575), (1425, 55068), (1482, 52950), (1710, 45890), (1765, 44460), (1900, 41301), (1950, 40242), (2118, 37050), (2223, 35300), (2340, 33535), (2470, 31770), (2850, 27534), (2925, 26828), (2964, 26475), (3177, 24700), (3420, 22945), (3530, 22230), (3705, 21180), (3900, 20121), (4236, 18525), (4275, 18356), (4446, 17650), (4589, 17100), (4940, 15885), (5295, 14820), (5700, 13767), (5850, 13414), (6175, 12708), (6354, 12350), (6707, 11700), (7060, 11115), (7410, 10590), (8550, 9178), (8825, 8892)]