12738700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 30623040

約数和(自身を除く): 17884340

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 41, 50, 52, 65, 82, 100, 130, 164, 205, 239, 260, 325, 410, 478, 533, 650, 820, 956, 1025, 1066, 1195, 1300, 2050, 2132, 2390, 2665, 3107, 4100, 4780, 5330, 5975, 6214, 9799, 10660, 11950, 12428, 13325, 15535, 19598, 23900, 26650, 31070, 39196, 48995, 53300, 62140, 77675, 97990, 127387, 155350, 195980, 244975, 254774, 310700, 489950, 509548, 636935, 979900, 1273870, 2547740, 3184675, 6369350, 12738700]

約数ペア:

[(1, 12738700), (2, 6369350), (4, 3184675), (5, 2547740), (10, 1273870), (13, 979900), (20, 636935), (25, 509548), (26, 489950), (41, 310700), (50, 254774), (52, 244975), (65, 195980), (82, 155350), (100, 127387), (130, 97990), (164, 77675), (205, 62140), (239, 53300), (260, 48995), (325, 39196), (410, 31070), (478, 26650), (533, 23900), (650, 19598), (820, 15535), (956, 13325), (1025, 12428), (1066, 11950), (1195, 10660), (1300, 9799), (2050, 6214), (2132, 5975), (2390, 5330), (2665, 4780), (3107, 4100)]