30787980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:383

約数の個数: 96

約数和(自身を含む): 91929600

約数和(自身を除く): 61141620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 113, 114, 190, 226, 228, 239, 285, 339, 380, 452, 478, 565, 570, 678, 717, 956, 1130, 1140, 1195, 1356, 1434, 1695, 2147, 2260, 2390, 2868, 3390, 3585, 4294, 4541, 4780, 6441, 6780, 7170, 8588, 9082, 10735, 12882, 13623, 14340, 18164, 21470, 22705, 25764, 27007, 27246, 32205, 42940, 45410, 54014, 54492, 64410, 68115, 81021, 90820, 108028, 128820, 135035, 136230, 162042, 270070, 272460, 324084, 405105, 513133, 540140, 810210, 1026266, 1539399, 1620420, 2052532, 2565665, 3078798, 5131330, 6157596, 7696995, 10262660, 15393990, 30787980]

約数ペア:

[(1, 30787980), (2, 15393990), (3, 10262660), (4, 7696995), (5, 6157596), (6, 5131330), (10, 3078798), (12, 2565665), (15, 2052532), (19, 1620420), (20, 1539399), (30, 1026266), (38, 810210), (57, 540140), (60, 513133), (76, 405105), (95, 324084), (113, 272460), (114, 270070), (190, 162042), (226, 136230), (228, 135035), (239, 128820), (285, 108028), (339, 90820), (380, 81021), (452, 68115), (478, 64410), (565, 54492), (570, 54014), (678, 45410), (717, 42940), (956, 32205), (1130, 27246), (1140, 27007), (1195, 25764), (1356, 22705), (1434, 21470), (1695, 18164), (2147, 14340), (2260, 13623), (2390, 12882), (2868, 10735), (3390, 9082), (3585, 8588), (4294, 7170), (4541, 6780), (4780, 6441)]