784736704760

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1\times {\mathrm{863}}^1\times {\mathrm{1229}}^1$

素因数の和:2505

約数の個数: 128

約数和(自身を含む): 1807686720000

約数和(自身を除く): 1022950015240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 349, 424, 530, 698, 863, 1060, 1229, 1396, 1726, 1745, 2120, 2458, 2792, 3452, 3490, 4315, 4916, 6145, 6904, 6980, 8630, 9832, 12290, 13960, 17260, 18497, 24580, 34520, 36994, 45739, 49160, 65137, 73988, 91478, 92485, 130274, 147976, 182956, 184970, 228695, 260548, 301187, 325685, 365912, 369940, 428921, 457390, 521096, 602374, 651370, 739880, 857842, 914780, 1060627, 1204748, 1302740, 1505935, 1715684, 1829560, 2121254, 2144605, 2409496, 2605480, 3011870, 3431368, 4242508, 4289210, 5303135, 6023740, 8485016, 8578420, 10606270, 12047480, 15962911, 17156840, 21212540, 22732813, 31925822, 42425080, 45465626, 56213231, 63851644, 79814555, 90931252, 112426462, 113664065, 127703288, 159629110, 181862504, 224852924, 227328130, 281066155, 319258220, 370158823, 449705848, 454656260, 562132310, 638516440, 740317646, 909312520, 1124264620, 1480635292, 1850794115, 2248529240, 2961270584, 3701588230, 7403176460, 14806352920, 19618417619, 39236835238, 78473670476, 98092088095, 156947340952, 196184176190, 392368352380, 784736704760]

約数ペア:

[(1, 784736704760), (2, 392368352380), (4, 196184176190), (5, 156947340952), (8, 98092088095), (10, 78473670476), (20, 39236835238), (40, 19618417619), (53, 14806352920), (106, 7403176460), (212, 3701588230), (265, 2961270584), (349, 2248529240), (424, 1850794115), (530, 1480635292), (698, 1124264620), (863, 909312520), (1060, 740317646), (1229, 638516440), (1396, 562132310), (1726, 454656260), (1745, 449705848), (2120, 370158823), (2458, 319258220), (2792, 281066155), (3452, 227328130), (3490, 224852924), (4315, 181862504), (4916, 159629110), (6145, 127703288), (6904, 113664065), (6980, 112426462), (8630, 90931252), (9832, 79814555), (12290, 63851644), (13960, 56213231), (17260, 45465626), (18497, 42425080), (24580, 31925822), (34520, 22732813), (36994, 21212540), (45739, 17156840), (49160, 15962911), (65137, 12047480), (73988, 10606270), (91478, 8578420), (92485, 8485016), (130274, 6023740), (147976, 5303135), (182956, 4289210), (184970, 4242508), (228695, 3431368), (260548, 3011870), (301187, 2605480), (325685, 2409496), (365912, 2144605), (369940, 2121254), (428921, 1829560), (457390, 1715684), (521096, 1505935), (602374, 1302740), (651370, 1204748), (739880, 1060627), (857842, 914780)]