19453780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1973}}^1$

素因数の和:2028

約数の個数: 48

約数和(自身を含む): 44770320

約数和(自身を除く): 25316540

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1972, 1973, 2465, 3946, 4930, 7892, 9860, 9865, 19730, 33541, 39460, 57217, 67082, 114434, 134164, 167705, 228868, 286085, 335410, 572170, 670820, 972689, 1144340, 1945378, 3890756, 4863445, 9726890, 19453780]

約数ペア:

[(1, 19453780), (2, 9726890), (4, 4863445), (5, 3890756), (10, 1945378), (17, 1144340), (20, 972689), (29, 670820), (34, 572170), (58, 335410), (68, 286085), (85, 228868), (116, 167705), (145, 134164), (170, 114434), (290, 67082), (340, 57217), (493, 39460), (580, 33541), (986, 19730), (1972, 9865), (1973, 9860), (2465, 7892), (3946, 4930)]