279869240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1697}}^1$

素因数の和:1765

約数の個数: 128

約数和(自身を含む): 782438400

約数和(自身を除く): 502569160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 31, 35, 38, 40, 56, 62, 70, 76, 95, 124, 133, 140, 152, 155, 190, 217, 248, 266, 280, 310, 380, 434, 532, 589, 620, 665, 760, 868, 1064, 1085, 1178, 1240, 1330, 1697, 1736, 2170, 2356, 2660, 2945, 3394, 4123, 4340, 4712, 5320, 5890, 6788, 8246, 8485, 8680, 11780, 11879, 13576, 16492, 16970, 20615, 23560, 23758, 32243, 32984, 33940, 41230, 47516, 52607, 59395, 64486, 67880, 82460, 95032, 105214, 118790, 128972, 161215, 164920, 210428, 225701, 237580, 257944, 263035, 322430, 368249, 420856, 451402, 475160, 526070, 644860, 736498, 902804, 999533, 1052140, 1128505, 1289720, 1472996, 1805608, 1841245, 1999066, 2104280, 2257010, 2945992, 3682490, 3998132, 4514020, 4997665, 6996731, 7364980, 7996264, 9028040, 9995330, 13993462, 14729960, 19990660, 27986924, 34983655, 39981320, 55973848, 69967310, 139934620, 279869240]

約数ペア:

[(1, 279869240), (2, 139934620), (4, 69967310), (5, 55973848), (7, 39981320), (8, 34983655), (10, 27986924), (14, 19990660), (19, 14729960), (20, 13993462), (28, 9995330), (31, 9028040), (35, 7996264), (38, 7364980), (40, 6996731), (56, 4997665), (62, 4514020), (70, 3998132), (76, 3682490), (95, 2945992), (124, 2257010), (133, 2104280), (140, 1999066), (152, 1841245), (155, 1805608), (190, 1472996), (217, 1289720), (248, 1128505), (266, 1052140), (280, 999533), (310, 902804), (380, 736498), (434, 644860), (532, 526070), (589, 475160), (620, 451402), (665, 420856), (760, 368249), (868, 322430), (1064, 263035), (1085, 257944), (1178, 237580), (1240, 225701), (1330, 210428), (1697, 164920), (1736, 161215), (2170, 128972), (2356, 118790), (2660, 105214), (2945, 95032), (3394, 82460), (4123, 67880), (4340, 64486), (4712, 59395), (5320, 52607), (5890, 47516), (6788, 41230), (8246, 33940), (8485, 32984), (8680, 32243), (11780, 23758), (11879, 23560), (13576, 20615), (16492, 16970)]