281370880

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1013}}^1$

素因数の和:1072

約数の個数: 144

約数和(自身を含む): 795884544

約数和(自身を除く): 514513664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 256, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 992, 1013, 1085, 1120, 1240, 1280, 1736, 1792, 1984, 2026, 2170, 2240, 2480, 3472, 3968, 4052, 4340, 4480, 4960, 5065, 6944, 7091, 7936, 8104, 8680, 8960, 9920, 10130, 13888, 14182, 16208, 17360, 19840, 20260, 27776, 28364, 31403, 32416, 34720, 35455, 39680, 40520, 55552, 56728, 62806, 64832, 69440, 70910, 81040, 113456, 125612, 129664, 138880, 141820, 157015, 162080, 219821, 226912, 251224, 259328, 277760, 283640, 314030, 324160, 439642, 453824, 502448, 567280, 628060, 648320, 879284, 907648, 1004896, 1099105, 1134560, 1256120, 1296640, 1758568, 1815296, 2009792, 2198210, 2269120, 2512240, 3517136, 4019584, 4396420, 4538240, 5024480, 7034272, 8039168, 8792840, 9076480, 10048960, 14068544, 17585680, 20097920, 28137088, 35171360, 40195840, 56274176, 70342720, 140685440, 281370880]

約数ペア:

[(1, 281370880), (2, 140685440), (4, 70342720), (5, 56274176), (7, 40195840), (8, 35171360), (10, 28137088), (14, 20097920), (16, 17585680), (20, 14068544), (28, 10048960), (31, 9076480), (32, 8792840), (35, 8039168), (40, 7034272), (56, 5024480), (62, 4538240), (64, 4396420), (70, 4019584), (80, 3517136), (112, 2512240), (124, 2269120), (128, 2198210), (140, 2009792), (155, 1815296), (160, 1758568), (217, 1296640), (224, 1256120), (248, 1134560), (256, 1099105), (280, 1004896), (310, 907648), (320, 879284), (434, 648320), (448, 628060), (496, 567280), (560, 502448), (620, 453824), (640, 439642), (868, 324160), (896, 314030), (992, 283640), (1013, 277760), (1085, 259328), (1120, 251224), (1240, 226912), (1280, 219821), (1736, 162080), (1792, 157015), (1984, 141820), (2026, 138880), (2170, 129664), (2240, 125612), (2480, 113456), (3472, 81040), (3968, 70910), (4052, 69440), (4340, 64832), (4480, 62806), (4960, 56728), (5065, 55552), (6944, 40520), (7091, 39680), (7936, 35455), (8104, 34720), (8680, 32416), (8960, 31403), (9920, 28364), (10130, 27776), (13888, 20260), (14182, 19840), (16208, 17360)]