4037500

素因数分解:

$2^2\times 5^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:65

約数の個数: 72

約数和(自身を含む): 9843120

約数和(自身を除く): 5805620

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 25, 34, 38, 50, 68, 76, 85, 95, 100, 125, 170, 190, 250, 323, 340, 380, 425, 475, 500, 625, 646, 850, 950, 1250, 1292, 1615, 1700, 1900, 2125, 2375, 2500, 3125, 3230, 4250, 4750, 6250, 6460, 8075, 8500, 9500, 10625, 11875, 12500, 16150, 21250, 23750, 32300, 40375, 42500, 47500, 53125, 59375, 80750, 106250, 118750, 161500, 201875, 212500, 237500, 403750, 807500, 1009375, 2018750, 4037500]

約数ペア:

[(1, 4037500), (2, 2018750), (4, 1009375), (5, 807500), (10, 403750), (17, 237500), (19, 212500), (20, 201875), (25, 161500), (34, 118750), (38, 106250), (50, 80750), (68, 59375), (76, 53125), (85, 47500), (95, 42500), (100, 40375), (125, 32300), (170, 23750), (190, 21250), (250, 16150), (323, 12500), (340, 11875), (380, 10625), (425, 9500), (475, 8500), (500, 8075), (625, 6460), (646, 6250), (850, 4750), (950, 4250), (1250, 3230), (1292, 3125), (1615, 2500), (1700, 2375), (1900, 2125)]