12840780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{12589}}^1$

素因数の和:12618

約数の個数: 48

約数和(自身を含む): 38072160

約数和(自身を除く): 25231380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 12589, 25178, 37767, 50356, 62945, 75534, 125890, 151068, 188835, 214013, 251780, 377670, 428026, 642039, 755340, 856052, 1070065, 1284078, 2140130, 2568156, 3210195, 4280260, 6420390, 12840780]

約数ペア:

[(1, 12840780), (2, 6420390), (3, 4280260), (4, 3210195), (5, 2568156), (6, 2140130), (10, 1284078), (12, 1070065), (15, 856052), (17, 755340), (20, 642039), (30, 428026), (34, 377670), (51, 251780), (60, 214013), (68, 188835), (85, 151068), (102, 125890), (170, 75534), (204, 62945), (255, 50356), (340, 37767), (510, 25178), (1020, 12589)]