354684980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{8689}}^1$

素因数の和:8868

約数の個数: 48

約数和(自身を含む): 807335760

約数和(自身を除く): 452650780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 314, 628, 785, 1570, 2041, 3140, 4082, 8164, 8689, 10205, 17378, 20410, 34756, 40820, 43445, 86890, 112957, 173780, 225914, 451828, 564785, 1129570, 1364173, 2259140, 2728346, 5456692, 6820865, 13641730, 17734249, 27283460, 35468498, 70936996, 88671245, 177342490, 354684980]

約数ペア:

[(1, 354684980), (2, 177342490), (4, 88671245), (5, 70936996), (10, 35468498), (13, 27283460), (20, 17734249), (26, 13641730), (52, 6820865), (65, 5456692), (130, 2728346), (157, 2259140), (260, 1364173), (314, 1129570), (628, 564785), (785, 451828), (1570, 225914), (2041, 173780), (3140, 112957), (4082, 86890), (8164, 43445), (8689, 40820), (10205, 34756), (17378, 20410)]