281381640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{739}}^1$

素因数の和:939

約数の個数: 128

約数和(自身を含む): 895104000

約数和(自身を除く): 613722360

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, 167, 190, 228, 285, 334, 380, 456, 501, 570, 668, 739, 760, 835, 1002, 1140, 1336, 1478, 1670, 2004, 2217, 2280, 2505, 2956, 3173, 3340, 3695, 4008, 4434, 5010, 5912, 6346, 6680, 7390, 8868, 9519, 10020, 11085, 12692, 14041, 14780, 15865, 17736, 19038, 20040, 22170, 25384, 28082, 29560, 31730, 38076, 42123, 44340, 47595, 56164, 63460, 70205, 76152, 84246, 88680, 95190, 112328, 123413, 126920, 140410, 168492, 190380, 210615, 246826, 280820, 336984, 370239, 380760, 421230, 493652, 561640, 617065, 740478, 842460, 987304, 1234130, 1480956, 1684920, 1851195, 2344847, 2468260, 2961912, 3702390, 4689694, 4936520, 7034541, 7404780, 9379388, 11724235, 14069082, 14809560, 18758776, 23448470, 28138164, 35172705, 46896940, 56276328, 70345410, 93793880, 140690820, 281381640]

約数ペア:

[(1, 281381640), (2, 140690820), (3, 93793880), (4, 70345410), (5, 56276328), (6, 46896940), (8, 35172705), (10, 28138164), (12, 23448470), (15, 18758776), (19, 14809560), (20, 14069082), (24, 11724235), (30, 9379388), (38, 7404780), (40, 7034541), (57, 4936520), (60, 4689694), (76, 3702390), (95, 2961912), (114, 2468260), (120, 2344847), (152, 1851195), (167, 1684920), (190, 1480956), (228, 1234130), (285, 987304), (334, 842460), (380, 740478), (456, 617065), (501, 561640), (570, 493652), (668, 421230), (739, 380760), (760, 370239), (835, 336984), (1002, 280820), (1140, 246826), (1336, 210615), (1478, 190380), (1670, 168492), (2004, 140410), (2217, 126920), (2280, 123413), (2505, 112328), (2956, 95190), (3173, 88680), (3340, 84246), (3695, 76152), (4008, 70205), (4434, 63460), (5010, 56164), (5912, 47595), (6346, 44340), (6680, 42123), (7390, 38076), (8868, 31730), (9519, 29560), (10020, 28082), (11085, 25384), (12692, 22170), (14041, 20040), (14780, 19038), (15865, 17736)]