161421340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:323

約数の個数: 96

約数和(自身を含む): 375459840

約数和(自身を除く): 214038500

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 71, 76, 95, 124, 142, 155, 190, 193, 284, 310, 355, 380, 386, 589, 620, 710, 772, 965, 1178, 1349, 1420, 1930, 2201, 2356, 2698, 2945, 3667, 3860, 4402, 5396, 5890, 5983, 6745, 7334, 8804, 11005, 11780, 11966, 13490, 13703, 14668, 18335, 22010, 23932, 26980, 27406, 29915, 36670, 41819, 44020, 54812, 59830, 68515, 73340, 83638, 113677, 119660, 137030, 167276, 209095, 227354, 260357, 274060, 418190, 424793, 454708, 520714, 568385, 836380, 849586, 1041428, 1136770, 1301785, 1699172, 2123965, 2273540, 2603570, 4247930, 5207140, 8071067, 8495860, 16142134, 32284268, 40355335, 80710670, 161421340]

約数ペア:

[(1, 161421340), (2, 80710670), (4, 40355335), (5, 32284268), (10, 16142134), (19, 8495860), (20, 8071067), (31, 5207140), (38, 4247930), (62, 2603570), (71, 2273540), (76, 2123965), (95, 1699172), (124, 1301785), (142, 1136770), (155, 1041428), (190, 849586), (193, 836380), (284, 568385), (310, 520714), (355, 454708), (380, 424793), (386, 418190), (589, 274060), (620, 260357), (710, 227354), (772, 209095), (965, 167276), (1178, 137030), (1349, 119660), (1420, 113677), (1930, 83638), (2201, 73340), (2356, 68515), (2698, 59830), (2945, 54812), (3667, 44020), (3860, 41819), (4402, 36670), (5396, 29915), (5890, 27406), (5983, 26980), (6745, 23932), (7334, 22010), (8804, 18335), (11005, 14668), (11780, 13703), (11966, 13490)]