17890720

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3607}}^1$

素因数の和:3653

約数の個数: 48

約数和(自身を含む): 43642368

約数和(自身を除く): 25751648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 3607, 4960, 7214, 14428, 18035, 28856, 36070, 57712, 72140, 111817, 115424, 144280, 223634, 288560, 447268, 559085, 577120, 894536, 1118170, 1789072, 2236340, 3578144, 4472680, 8945360, 17890720]

約数ペア:

[(1, 17890720), (2, 8945360), (4, 4472680), (5, 3578144), (8, 2236340), (10, 1789072), (16, 1118170), (20, 894536), (31, 577120), (32, 559085), (40, 447268), (62, 288560), (80, 223634), (124, 144280), (155, 115424), (160, 111817), (248, 72140), (310, 57712), (496, 36070), (620, 28856), (992, 18035), (1240, 14428), (2480, 7214), (3607, 4960)]