28931560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{509}}^1$

素因数の和:563

約数の個数: 96

約数和(自身を含む): 78489000

約数和(自身を除く): 49557440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 49, 56, 58, 70, 98, 116, 140, 145, 196, 203, 232, 245, 280, 290, 392, 406, 490, 509, 580, 812, 980, 1015, 1018, 1160, 1421, 1624, 1960, 2030, 2036, 2545, 2842, 3563, 4060, 4072, 5090, 5684, 7105, 7126, 8120, 10180, 11368, 14210, 14252, 14761, 17815, 20360, 24941, 28420, 28504, 29522, 35630, 49882, 56840, 59044, 71260, 73805, 99764, 103327, 118088, 124705, 142520, 147610, 199528, 206654, 249410, 295220, 413308, 498820, 516635, 590440, 723289, 826616, 997640, 1033270, 1446578, 2066540, 2893156, 3616445, 4133080, 5786312, 7232890, 14465780, 28931560]

約数ペア:

[(1, 28931560), (2, 14465780), (4, 7232890), (5, 5786312), (7, 4133080), (8, 3616445), (10, 2893156), (14, 2066540), (20, 1446578), (28, 1033270), (29, 997640), (35, 826616), (40, 723289), (49, 590440), (56, 516635), (58, 498820), (70, 413308), (98, 295220), (116, 249410), (140, 206654), (145, 199528), (196, 147610), (203, 142520), (232, 124705), (245, 118088), (280, 103327), (290, 99764), (392, 73805), (406, 71260), (490, 59044), (509, 56840), (580, 49882), (812, 35630), (980, 29522), (1015, 28504), (1018, 28420), (1160, 24941), (1421, 20360), (1624, 17815), (1960, 14761), (2030, 14252), (2036, 14210), (2545, 11368), (2842, 10180), (3563, 8120), (4060, 7126), (4072, 7105), (5090, 5684)]