290859760

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{379}}^1$

素因数の和:626

約数の個数: 80

約数和(自身を含む): 694643040

約数和(自身を除く): 403783280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 181, 212, 265, 362, 379, 424, 530, 724, 758, 848, 905, 1060, 1448, 1516, 1810, 1895, 2120, 2896, 3032, 3620, 3790, 4240, 6064, 7240, 7580, 9593, 14480, 15160, 19186, 20087, 30320, 38372, 40174, 47965, 68599, 76744, 80348, 95930, 100435, 137198, 153488, 160696, 191860, 200870, 274396, 321392, 342995, 383720, 401740, 548792, 685990, 767440, 803480, 1097584, 1371980, 1606960, 2743960, 3635747, 5487920, 7271494, 14542988, 18178735, 29085976, 36357470, 58171952, 72714940, 145429880, 290859760]

約数ペア:

[(1, 290859760), (2, 145429880), (4, 72714940), (5, 58171952), (8, 36357470), (10, 29085976), (16, 18178735), (20, 14542988), (40, 7271494), (53, 5487920), (80, 3635747), (106, 2743960), (181, 1606960), (212, 1371980), (265, 1097584), (362, 803480), (379, 767440), (424, 685990), (530, 548792), (724, 401740), (758, 383720), (848, 342995), (905, 321392), (1060, 274396), (1448, 200870), (1516, 191860), (1810, 160696), (1895, 153488), (2120, 137198), (2896, 100435), (3032, 95930), (3620, 80348), (3790, 76744), (4240, 68599), (6064, 47965), (7240, 40174), (7580, 38372), (9593, 30320), (14480, 20087), (15160, 19186)]