645538740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19961}}^1$

素因数の和:19998

約数の個数: 144

約数和(自身を含む): 2293873344

約数和(自身を除く): 1648334604

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 49, 55, 60, 66, 70, 77, 84, 98, 105, 110, 132, 140, 147, 154, 165, 196, 210, 220, 231, 245, 294, 308, 330, 385, 420, 462, 490, 539, 588, 660, 735, 770, 924, 980, 1078, 1155, 1470, 1540, 1617, 2156, 2310, 2695, 2940, 3234, 4620, 5390, 6468, 8085, 10780, 16170, 19961, 32340, 39922, 59883, 79844, 99805, 119766, 139727, 199610, 219571, 239532, 279454, 299415, 399220, 419181, 439142, 558908, 598830, 658713, 698635, 838362, 878284, 978089, 1097855, 1197660, 1317426, 1397270, 1536997, 1676724, 1956178, 2095905, 2195710, 2634852, 2794540, 2934267, 3073994, 3293565, 3912356, 4191810, 4391420, 4610991, 4890445, 5868534, 6147988, 6587130, 7684985, 8383620, 9221982, 9780890, 10758979, 11737068, 13174260, 14671335, 15369970, 18443964, 19561780, 21517958, 23054955, 29342670, 30739940, 32276937, 43035916, 46109910, 53794895, 58685340, 64553874, 92219820, 107589790, 129107748, 161384685, 215179580, 322769370, 645538740]

約数ペア:

[(1, 645538740), (2, 322769370), (3, 215179580), (4, 161384685), (5, 129107748), (6, 107589790), (7, 92219820), (10, 64553874), (11, 58685340), (12, 53794895), (14, 46109910), (15, 43035916), (20, 32276937), (21, 30739940), (22, 29342670), (28, 23054955), (30, 21517958), (33, 19561780), (35, 18443964), (42, 15369970), (44, 14671335), (49, 13174260), (55, 11737068), (60, 10758979), (66, 9780890), (70, 9221982), (77, 8383620), (84, 7684985), (98, 6587130), (105, 6147988), (110, 5868534), (132, 4890445), (140, 4610991), (147, 4391420), (154, 4191810), (165, 3912356), (196, 3293565), (210, 3073994), (220, 2934267), (231, 2794540), (245, 2634852), (294, 2195710), (308, 2095905), (330, 1956178), (385, 1676724), (420, 1536997), (462, 1397270), (490, 1317426), (539, 1197660), (588, 1097855), (660, 978089), (735, 878284), (770, 838362), (924, 698635), (980, 658713), (1078, 598830), (1155, 558908), (1470, 439142), (1540, 419181), (1617, 399220), (2156, 299415), (2310, 279454), (2695, 239532), (2940, 219571), (3234, 199610), (4620, 139727), (5390, 119766), (6468, 99805), (8085, 79844), (10780, 59883), (16170, 39922), (19961, 32340)]