20896353520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{63353}}^1$

素因数の和:63423

約数の個数: 160

約数和(自身を含む): 60333281280

約数和(自身を除く): 39436927760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 35, 38, 40, 56, 62, 70, 76, 80, 95, 112, 124, 133, 140, 152, 155, 190, 217, 248, 266, 280, 304, 310, 380, 434, 496, 532, 560, 589, 620, 665, 760, 868, 1064, 1085, 1178, 1240, 1330, 1520, 1736, 2128, 2170, 2356, 2480, 2660, 2945, 3472, 4123, 4340, 4712, 5320, 5890, 8246, 8680, 9424, 10640, 11780, 16492, 17360, 20615, 23560, 32984, 41230, 47120, 63353, 65968, 82460, 126706, 164920, 253412, 316765, 329840, 443471, 506824, 633530, 886942, 1013648, 1203707, 1267060, 1773884, 1963943, 2217355, 2407414, 2534120, 3547768, 3927886, 4434710, 4814828, 5068240, 6018535, 7095536, 7855772, 8425949, 8869420, 9629656, 9819715, 12037070, 13747601, 15711544, 16851898, 17738840, 19259312, 19639430, 24074140, 27495202, 31423088, 33703796, 35477680, 37314917, 39278860, 42129745, 48148280, 54990404, 67407592, 68738005, 74629834, 78557720, 84259490, 96296560, 109980808, 134815184, 137476010, 149259668, 157115440, 168518980, 186574585, 219961616, 261204419, 274952020, 298519336, 337037960, 373149170, 522408838, 549904040, 597038672, 674075920, 746298340, 1044817676, 1099808080, 1306022095, 1492596680, 2089635352, 2612044190, 2985193360, 4179270704, 5224088380, 10448176760, 20896353520]

約数ペア:

[(1, 20896353520), (2, 10448176760), (4, 5224088380), (5, 4179270704), (7, 2985193360), (8, 2612044190), (10, 2089635352), (14, 1492596680), (16, 1306022095), (19, 1099808080), (20, 1044817676), (28, 746298340), (31, 674075920), (35, 597038672), (38, 549904040), (40, 522408838), (56, 373149170), (62, 337037960), (70, 298519336), (76, 274952020), (80, 261204419), (95, 219961616), (112, 186574585), (124, 168518980), (133, 157115440), (140, 149259668), (152, 137476010), (155, 134815184), (190, 109980808), (217, 96296560), (248, 84259490), (266, 78557720), (280, 74629834), (304, 68738005), (310, 67407592), (380, 54990404), (434, 48148280), (496, 42129745), (532, 39278860), (560, 37314917), (589, 35477680), (620, 33703796), (665, 31423088), (760, 27495202), (868, 24074140), (1064, 19639430), (1085, 19259312), (1178, 17738840), (1240, 16851898), (1330, 15711544), (1520, 13747601), (1736, 12037070), (2128, 9819715), (2170, 9629656), (2356, 8869420), (2480, 8425949), (2660, 7855772), (2945, 7095536), (3472, 6018535), (4123, 5068240), (4340, 4814828), (4712, 4434710), (5320, 3927886), (5890, 3547768), (8246, 2534120), (8680, 2407414), (9424, 2217355), (10640, 1963943), (11780, 1773884), (16492, 1267060), (17360, 1203707), (20615, 1013648), (23560, 886942), (32984, 633530), (41230, 506824), (47120, 443471), (63353, 329840), (65968, 316765), (82460, 253412), (126706, 164920)]