1240020460

素因数分解:

$2^2\times 5^1\times 7^6\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:99

約数の個数: 168

約数和(自身を含む): 3320521344

約数和(自身を除く): 2080500884

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 31, 34, 35, 49, 62, 68, 70, 85, 98, 119, 124, 140, 155, 170, 196, 217, 238, 245, 310, 340, 343, 434, 476, 490, 527, 595, 620, 686, 833, 868, 980, 1054, 1085, 1190, 1372, 1519, 1666, 1715, 2108, 2170, 2380, 2401, 2635, 3038, 3332, 3430, 3689, 4165, 4340, 4802, 5270, 5831, 6076, 6860, 7378, 7595, 8330, 9604, 10540, 10633, 11662, 12005, 14756, 15190, 16660, 16807, 18445, 21266, 23324, 24010, 25823, 29155, 30380, 33614, 36890, 40817, 42532, 48020, 51646, 53165, 58310, 67228, 73780, 74431, 81634, 84035, 103292, 106330, 116620, 117649, 129115, 148862, 163268, 168070, 180761, 204085, 212660, 235298, 258230, 285719, 297724, 336140, 361522, 372155, 408170, 470596, 516460, 521017, 571438, 588245, 723044, 744310, 816340, 903805, 1042034, 1142876, 1176490, 1265327, 1428595, 1488620, 1807610, 2000033, 2084068, 2352980, 2530654, 2605085, 2857190, 3615220, 3647119, 4000066, 5061308, 5210170, 5714380, 6326635, 7294238, 8000132, 8857289, 10000165, 10420340, 12653270, 14588476, 17714578, 18235595, 20000330, 25306540, 35429156, 36471190, 40000660, 44286445, 62001023, 72942380, 88572890, 124002046, 177145780, 248004092, 310005115, 620010230, 1240020460]

約数ペア:

[(1, 1240020460), (2, 620010230), (4, 310005115), (5, 248004092), (7, 177145780), (10, 124002046), (14, 88572890), (17, 72942380), (20, 62001023), (28, 44286445), (31, 40000660), (34, 36471190), (35, 35429156), (49, 25306540), (62, 20000330), (68, 18235595), (70, 17714578), (85, 14588476), (98, 12653270), (119, 10420340), (124, 10000165), (140, 8857289), (155, 8000132), (170, 7294238), (196, 6326635), (217, 5714380), (238, 5210170), (245, 5061308), (310, 4000066), (340, 3647119), (343, 3615220), (434, 2857190), (476, 2605085), (490, 2530654), (527, 2352980), (595, 2084068), (620, 2000033), (686, 1807610), (833, 1488620), (868, 1428595), (980, 1265327), (1054, 1176490), (1085, 1142876), (1190, 1042034), (1372, 903805), (1519, 816340), (1666, 744310), (1715, 723044), (2108, 588245), (2170, 571438), (2380, 521017), (2401, 516460), (2635, 470596), (3038, 408170), (3332, 372155), (3430, 361522), (3689, 336140), (4165, 297724), (4340, 285719), (4802, 258230), (5270, 235298), (5831, 212660), (6076, 204085), (6860, 180761), (7378, 168070), (7595, 163268), (8330, 148862), (9604, 129115), (10540, 117649), (10633, 116620), (11662, 106330), (12005, 103292), (14756, 84035), (15190, 81634), (16660, 74431), (16807, 73780), (18445, 67228), (21266, 58310), (23324, 53165), (24010, 51646), (25823, 48020), (29155, 42532), (30380, 40817), (33614, 36890)]