18780450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9631}}^1$

素因数の和:9659

約数の個数: 48

約数和(自身を含む): 50163456

約数和(自身を除く): 31383006

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 9631, 19262, 28893, 48155, 57786, 96310, 125203, 144465, 240775, 250406, 288930, 375609, 481550, 626015, 722325, 751218, 1252030, 1444650, 1878045, 3130075, 3756090, 6260150, 9390225, 18780450]

約数ペア:

[(1, 18780450), (2, 9390225), (3, 6260150), (5, 3756090), (6, 3130075), (10, 1878045), (13, 1444650), (15, 1252030), (25, 751218), (26, 722325), (30, 626015), (39, 481550), (50, 375609), (65, 288930), (75, 250406), (78, 240775), (130, 144465), (150, 125203), (195, 96310), (325, 57786), (390, 48155), (650, 28893), (975, 19262), (1950, 9631)]