28884700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1307}}^1$

素因数の和:1351

約数の個数: 72

約数和(自身を含む): 71526672

約数和(自身を除く): 42641972

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 130, 170, 221, 260, 325, 340, 425, 442, 650, 850, 884, 1105, 1300, 1307, 1700, 2210, 2614, 4420, 5228, 5525, 6535, 11050, 13070, 16991, 22100, 22219, 26140, 32675, 33982, 44438, 65350, 67964, 84955, 88876, 111095, 130700, 169910, 222190, 288847, 339820, 424775, 444380, 555475, 577694, 849550, 1110950, 1155388, 1444235, 1699100, 2221900, 2888470, 5776940, 7221175, 14442350, 28884700]

約数ペア:

[(1, 28884700), (2, 14442350), (4, 7221175), (5, 5776940), (10, 2888470), (13, 2221900), (17, 1699100), (20, 1444235), (25, 1155388), (26, 1110950), (34, 849550), (50, 577694), (52, 555475), (65, 444380), (68, 424775), (85, 339820), (100, 288847), (130, 222190), (170, 169910), (221, 130700), (260, 111095), (325, 88876), (340, 84955), (425, 67964), (442, 65350), (650, 44438), (850, 33982), (884, 32675), (1105, 26140), (1300, 22219), (1307, 22100), (1700, 16991), (2210, 13070), (2614, 11050), (4420, 6535), (5228, 5525)]