18319450

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:319

約数の個数: 48

約数和(自身を含む): 35997696

約数和(自身を除く): 17678246

約数列:

[1, 2, 5, 10, 25, 31, 50, 53, 62, 106, 155, 223, 265, 310, 446, 530, 775, 1115, 1325, 1550, 1643, 2230, 2650, 3286, 5575, 6913, 8215, 11150, 11819, 13826, 16430, 23638, 34565, 41075, 59095, 69130, 82150, 118190, 172825, 295475, 345650, 366389, 590950, 732778, 1831945, 3663890, 9159725, 18319450]

約数ペア:

[(1, 18319450), (2, 9159725), (5, 3663890), (10, 1831945), (25, 732778), (31, 590950), (50, 366389), (53, 345650), (62, 295475), (106, 172825), (155, 118190), (223, 82150), (265, 69130), (310, 59095), (446, 41075), (530, 34565), (775, 23638), (1115, 16430), (1325, 13826), (1550, 11819), (1643, 11150), (2230, 8215), (2650, 6913), (3286, 5575)]