388658.0000000

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{401}}^1$

素因数の和:439

約数の個数: 72

約数和(自身を含む): 12359088

約数和(自身を除く): 8292948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 401, 507, 676, 780, 802, 845, 1014, 1203, 1604, 1690, 2005, 2028, 2406, 2535, 3380, 4010, 4812, 5070, 5213, 6015, 8020, 10140, 10426, 12030, 15639, 20852, 24060, 26065, 31278, 52130, 62556, 67769, 78195, 104260, 135538, 156390, 203307, 271076, 312780, 338845, 406614, 677690, 813228, 1016535, 1355380, 2033070, 4066140]

約数ペア:

[(1, 4066140), (2, 2033070), (3, 1355380), (4, 1016535), (5, 813228), (6, 677690), (10, 406614), (12, 338845), (13, 312780), (15, 271076), (20, 203307), (26, 156390), (30, 135538), (39, 104260), (52, 78195), (60, 67769), (65, 62556), (78, 52130), (130, 31278), (156, 26065), (169, 24060), (195, 20852), (260, 15639), (338, 12030), (390, 10426), (401, 10140), (507, 8020), (676, 6015), (780, 5213), (802, 5070), (845, 4812), (1014, 4010), (1203, 3380), (1604, 2535), (1690, 2406), (2005, 2028)]