261892960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:469

約数の個数: 192

約数和(自身を含む): 770273280

約数和(自身を除く): 508380320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 32, 35, 38, 40, 56, 62, 70, 76, 80, 95, 112, 124, 133, 140, 152, 155, 160, 190, 217, 224, 248, 266, 280, 304, 310, 380, 397, 434, 496, 532, 560, 589, 608, 620, 665, 760, 794, 868, 992, 1064, 1085, 1120, 1178, 1240, 1330, 1520, 1588, 1736, 1985, 2128, 2170, 2356, 2480, 2660, 2779, 2945, 3040, 3176, 3472, 3970, 4123, 4256, 4340, 4712, 4960, 5320, 5558, 5890, 6352, 6944, 7543, 7940, 8246, 8680, 9424, 10640, 11116, 11780, 12307, 12704, 13895, 15086, 15880, 16492, 17360, 18848, 20615, 21280, 22232, 23560, 24614, 27790, 30172, 31760, 32984, 34720, 37715, 41230, 44464, 47120, 49228, 52801, 55580, 60344, 61535, 63520, 65968, 75430, 82460, 86149, 88928, 94240, 98456, 105602, 111160, 120688, 123070, 131936, 150860, 164920, 172298, 196912, 211204, 222320, 233833, 241376, 246140, 264005, 301720, 329840, 344596, 393824, 422408, 430745, 444640, 467666, 492280, 528010, 603440, 659680, 689192, 844816, 861490, 935332, 984560, 1056020, 1169165, 1206880, 1378384, 1636831, 1689632, 1722980, 1870664, 1969120, 2112040, 2338330, 2756768, 3273662, 3445960, 3741328, 4224080, 4676660, 6547324, 6891920, 7482656, 8184155, 8448160, 9353320, 13094648, 13783840, 16368310, 18706640, 26189296, 32736620, 37413280, 52378592, 65473240, 130946480, 261892960]

約数ペア:

[(1, 261892960), (2, 130946480), (4, 65473240), (5, 52378592), (7, 37413280), (8, 32736620), (10, 26189296), (14, 18706640), (16, 16368310), (19, 13783840), (20, 13094648), (28, 9353320), (31, 8448160), (32, 8184155), (35, 7482656), (38, 6891920), (40, 6547324), (56, 4676660), (62, 4224080), (70, 3741328), (76, 3445960), (80, 3273662), (95, 2756768), (112, 2338330), (124, 2112040), (133, 1969120), (140, 1870664), (152, 1722980), (155, 1689632), (160, 1636831), (190, 1378384), (217, 1206880), (224, 1169165), (248, 1056020), (266, 984560), (280, 935332), (304, 861490), (310, 844816), (380, 689192), (397, 659680), (434, 603440), (496, 528010), (532, 492280), (560, 467666), (589, 444640), (608, 430745), (620, 422408), (665, 393824), (760, 344596), (794, 329840), (868, 301720), (992, 264005), (1064, 246140), (1085, 241376), (1120, 233833), (1178, 222320), (1240, 211204), (1330, 196912), (1520, 172298), (1588, 164920), (1736, 150860), (1985, 131936), (2128, 123070), (2170, 120688), (2356, 111160), (2480, 105602), (2660, 98456), (2779, 94240), (2945, 88928), (3040, 86149), (3176, 82460), (3472, 75430), (3970, 65968), (4123, 63520), (4256, 61535), (4340, 60344), (4712, 55580), (4960, 52801), (5320, 49228), (5558, 47120), (5890, 44464), (6352, 41230), (6944, 37715), (7543, 34720), (7940, 32984), (8246, 31760), (8680, 30172), (9424, 27790), (10640, 24614), (11116, 23560), (11780, 22232), (12307, 21280), (12704, 20615), (13895, 18848), (15086, 17360), (15880, 16492)]