15705821990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{8521}}^1$

素因数の和:8745

約数の個数: 64

約数和(自身を含む): 30372408000

約数和(自身を除く): 14666586010

約数列:

[1, 2, 5, 10, 19, 38, 89, 95, 109, 178, 190, 218, 445, 545, 890, 1090, 1691, 2071, 3382, 4142, 8455, 8521, 9701, 10355, 16910, 17042, 19402, 20710, 42605, 48505, 85210, 97010, 161899, 184319, 323798, 368638, 758369, 809495, 921595, 928789, 1516738, 1618990, 1843190, 1857578, 3791845, 4643945, 7583690, 9287890, 14409011, 17646991, 28818022, 35293982, 72045055, 82662221, 88234955, 144090110, 165324442, 176469910, 413311105, 826622210, 1570582199, 3141164398, 7852910995, 15705821990]

約数ペア:

[(1, 15705821990), (2, 7852910995), (5, 3141164398), (10, 1570582199), (19, 826622210), (38, 413311105), (89, 176469910), (95, 165324442), (109, 144090110), (178, 88234955), (190, 82662221), (218, 72045055), (445, 35293982), (545, 28818022), (890, 17646991), (1090, 14409011), (1691, 9287890), (2071, 7583690), (3382, 4643945), (4142, 3791845), (8455, 1857578), (8521, 1843190), (9701, 1618990), (10355, 1516738), (16910, 928789), (17042, 921595), (19402, 809495), (20710, 758369), (42605, 368638), (48505, 323798), (85210, 184319), (97010, 161899)]