30797560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 72122400

約数和(自身を除く): 41324840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 89, 164, 178, 205, 211, 328, 356, 410, 422, 445, 712, 820, 844, 890, 1055, 1640, 1688, 1780, 2110, 3560, 3649, 4220, 7298, 8440, 8651, 14596, 17302, 18245, 18779, 29192, 34604, 36490, 37558, 43255, 69208, 72980, 75116, 86510, 93895, 145960, 150232, 173020, 187790, 346040, 375580, 751160, 769939, 1539878, 3079756, 3849695, 6159512, 7699390, 15398780, 30797560]

約数ペア:

[(1, 30797560), (2, 15398780), (4, 7699390), (5, 6159512), (8, 3849695), (10, 3079756), (20, 1539878), (40, 769939), (41, 751160), (82, 375580), (89, 346040), (164, 187790), (178, 173020), (205, 150232), (211, 145960), (328, 93895), (356, 86510), (410, 75116), (422, 72980), (445, 69208), (712, 43255), (820, 37558), (844, 36490), (890, 34604), (1055, 29192), (1640, 18779), (1688, 18245), (1780, 17302), (2110, 14596), (3560, 8651), (3649, 8440), (4220, 7298)]