280771120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{21799}}^1$

素因数の和:21842

約数の個数: 80

約数和(自身を含む): 778521600

約数和(自身を除く): 497750480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 12880, 21799, 43598, 87196, 108995, 152593, 174392, 217990, 305186, 348784, 435980, 501377, 610372, 762965, 871960, 1002754, 1220744, 1525930, 1743920, 2005508, 2441488, 2506885, 3051860, 3509639, 4011016, 5013770, 6103720, 7019278, 8022032, 10027540, 12207440, 14038556, 17548195, 20055080, 28077112, 35096390, 40110160, 56154224, 70192780, 140385560, 280771120]

約数ペア:

[(1, 280771120), (2, 140385560), (4, 70192780), (5, 56154224), (7, 40110160), (8, 35096390), (10, 28077112), (14, 20055080), (16, 17548195), (20, 14038556), (23, 12207440), (28, 10027540), (35, 8022032), (40, 7019278), (46, 6103720), (56, 5013770), (70, 4011016), (80, 3509639), (92, 3051860), (112, 2506885), (115, 2441488), (140, 2005508), (161, 1743920), (184, 1525930), (230, 1220744), (280, 1002754), (322, 871960), (368, 762965), (460, 610372), (560, 501377), (644, 435980), (805, 348784), (920, 305186), (1288, 217990), (1610, 174392), (1840, 152593), (2576, 108995), (3220, 87196), (6440, 43598), (12880, 21799)]