19911300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{2141}}^1$

素因数の和:2189

約数の個数: 72

約数和(自身を含む): 59496192

約数和(自身を除く): 39584892

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 31, 50, 60, 62, 75, 93, 100, 124, 150, 155, 186, 300, 310, 372, 465, 620, 775, 930, 1550, 1860, 2141, 2325, 3100, 4282, 4650, 6423, 8564, 9300, 10705, 12846, 21410, 25692, 32115, 42820, 53525, 64230, 66371, 107050, 128460, 132742, 160575, 199113, 214100, 265484, 321150, 331855, 398226, 642300, 663710, 796452, 995565, 1327420, 1659275, 1991130, 3318550, 3982260, 4977825, 6637100, 9955650, 19911300]

約数ペア:

[(1, 19911300), (2, 9955650), (3, 6637100), (4, 4977825), (5, 3982260), (6, 3318550), (10, 1991130), (12, 1659275), (15, 1327420), (20, 995565), (25, 796452), (30, 663710), (31, 642300), (50, 398226), (60, 331855), (62, 321150), (75, 265484), (93, 214100), (100, 199113), (124, 160575), (150, 132742), (155, 128460), (186, 107050), (300, 66371), (310, 64230), (372, 53525), (465, 42820), (620, 32115), (775, 25692), (930, 21410), (1550, 12846), (1860, 10705), (2141, 9300), (2325, 8564), (3100, 6423), (4282, 4650)]