84827780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 194584320

約数和(自身を除く): 109756540

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 361, 379, 380, 589, 620, 722, 758, 1178, 1444, 1516, 1805, 1895, 2356, 2945, 3610, 3790, 5890, 7201, 7220, 7580, 11191, 11749, 11780, 14402, 22382, 23498, 28804, 36005, 44764, 46996, 55955, 58745, 72010, 111910, 117490, 136819, 144020, 223231, 223820, 234980, 273638, 446462, 547276, 684095, 892924, 1116155, 1368190, 2232310, 2736380, 4241389, 4464620, 8482778, 16965556, 21206945, 42413890, 84827780]

約数ペア:

[(1, 84827780), (2, 42413890), (4, 21206945), (5, 16965556), (10, 8482778), (19, 4464620), (20, 4241389), (31, 2736380), (38, 2232310), (62, 1368190), (76, 1116155), (95, 892924), (124, 684095), (155, 547276), (190, 446462), (310, 273638), (361, 234980), (379, 223820), (380, 223231), (589, 144020), (620, 136819), (722, 117490), (758, 111910), (1178, 72010), (1444, 58745), (1516, 55955), (1805, 46996), (1895, 44764), (2356, 36005), (2945, 28804), (3610, 23498), (3790, 22382), (5890, 14402), (7201, 11780), (7220, 11749), (7580, 11191)]