20703350

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:118

約数の個数: 72

約数和(自身を含む): 43086528

約数和(自身を除く): 22383178

約数列:

[1, 2, 5, 10, 19, 25, 31, 37, 38, 50, 62, 74, 95, 155, 185, 190, 310, 361, 370, 475, 589, 703, 722, 775, 925, 950, 1147, 1178, 1406, 1550, 1805, 1850, 2294, 2945, 3515, 3610, 5735, 5890, 7030, 9025, 11191, 11470, 13357, 14725, 17575, 18050, 21793, 22382, 26714, 28675, 29450, 35150, 43586, 55955, 57350, 66785, 108965, 111910, 133570, 217930, 279775, 333925, 414067, 544825, 559550, 667850, 828134, 1089650, 2070335, 4140670, 10351675, 20703350]

約数ペア:

[(1, 20703350), (2, 10351675), (5, 4140670), (10, 2070335), (19, 1089650), (25, 828134), (31, 667850), (37, 559550), (38, 544825), (50, 414067), (62, 333925), (74, 279775), (95, 217930), (155, 133570), (185, 111910), (190, 108965), (310, 66785), (361, 57350), (370, 55955), (475, 43586), (589, 35150), (703, 29450), (722, 28675), (775, 26714), (925, 22382), (950, 21793), (1147, 18050), (1178, 17575), (1406, 14725), (1550, 13357), (1805, 11470), (1850, 11191), (2294, 9025), (2945, 7030), (3515, 5890), (3610, 5735)]