16650100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 38497536

約数和(自身を除く): 21847436

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 41, 50, 62, 82, 100, 124, 131, 155, 164, 205, 262, 310, 410, 524, 620, 655, 775, 820, 1025, 1271, 1310, 1550, 2050, 2542, 2620, 3100, 3275, 4061, 4100, 5084, 5371, 6355, 6550, 8122, 10742, 12710, 13100, 16244, 20305, 21484, 25420, 26855, 31775, 40610, 53710, 63550, 81220, 101525, 107420, 127100, 134275, 166501, 203050, 268550, 333002, 406100, 537100, 666004, 832505, 1665010, 3330020, 4162525, 8325050, 16650100]

約数ペア:

[(1, 16650100), (2, 8325050), (4, 4162525), (5, 3330020), (10, 1665010), (20, 832505), (25, 666004), (31, 537100), (41, 406100), (50, 333002), (62, 268550), (82, 203050), (100, 166501), (124, 134275), (131, 127100), (155, 107420), (164, 101525), (205, 81220), (262, 63550), (310, 53710), (410, 40610), (524, 31775), (620, 26855), (655, 25420), (775, 21484), (820, 20305), (1025, 16244), (1271, 13100), (1310, 12710), (1550, 10742), (2050, 8122), (2542, 6550), (2620, 6355), (3100, 5371), (3275, 5084), (4061, 4100)]