66600400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:221

約数の個数: 120

約数和(自身を含む): 170489088

約数和(自身を除く): 103888688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 41, 50, 62, 80, 82, 100, 124, 131, 155, 164, 200, 205, 248, 262, 310, 328, 400, 410, 496, 524, 620, 655, 656, 775, 820, 1025, 1048, 1240, 1271, 1310, 1550, 1640, 2050, 2096, 2480, 2542, 2620, 3100, 3275, 3280, 4061, 4100, 5084, 5240, 5371, 6200, 6355, 6550, 8122, 8200, 10168, 10480, 10742, 12400, 12710, 13100, 16244, 16400, 20305, 20336, 21484, 25420, 26200, 26855, 31775, 32488, 40610, 42968, 50840, 52400, 53710, 63550, 64976, 81220, 85936, 101525, 101680, 107420, 127100, 134275, 162440, 166501, 203050, 214840, 254200, 268550, 324880, 333002, 406100, 429680, 508400, 537100, 666004, 812200, 832505, 1074200, 1332008, 1624400, 1665010, 2148400, 2664016, 3330020, 4162525, 6660040, 8325050, 13320080, 16650100, 33300200, 66600400]

約数ペア:

[(1, 66600400), (2, 33300200), (4, 16650100), (5, 13320080), (8, 8325050), (10, 6660040), (16, 4162525), (20, 3330020), (25, 2664016), (31, 2148400), (40, 1665010), (41, 1624400), (50, 1332008), (62, 1074200), (80, 832505), (82, 812200), (100, 666004), (124, 537100), (131, 508400), (155, 429680), (164, 406100), (200, 333002), (205, 324880), (248, 268550), (262, 254200), (310, 214840), (328, 203050), (400, 166501), (410, 162440), (496, 134275), (524, 127100), (620, 107420), (655, 101680), (656, 101525), (775, 85936), (820, 81220), (1025, 64976), (1048, 63550), (1240, 53710), (1271, 52400), (1310, 50840), (1550, 42968), (1640, 40610), (2050, 32488), (2096, 31775), (2480, 26855), (2542, 26200), (2620, 25420), (3100, 21484), (3275, 20336), (3280, 20305), (4061, 16400), (4100, 16244), (5084, 13100), (5240, 12710), (5371, 12400), (6200, 10742), (6355, 10480), (6550, 10168), (8122, 8200)]