25306540

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:85

約数の個数: 120

約数和(自身を含む): 67761792

約数和(自身を除く): 42455252

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, 18445, 21266, 23324, 24010, 25823, 29155, 30380, 36890, 40817, 42532, 48020, 51646, 53165, 58310, 73780, 74431, 81634, 103292, 106330, 116620, 129115, 148862, 163268, 180761, 204085, 212660, 258230, 297724, 361522, 372155, 408170, 516460, 723044, 744310, 816340, 903805, 1265327, 1488620, 1807610, 2530654, 3615220, 5061308, 6326635, 12653270, 25306540]

約数ペア:

[(1, 25306540), (2, 12653270), (4, 6326635), (5, 5061308), (7, 3615220), (10, 2530654), (14, 1807610), (17, 1488620), (20, 1265327), (28, 903805), (31, 816340), (34, 744310), (35, 723044), (49, 516460), (62, 408170), (68, 372155), (70, 361522), (85, 297724), (98, 258230), (119, 212660), (124, 204085), (140, 180761), (155, 163268), (170, 148862), (196, 129115), (217, 116620), (238, 106330), (245, 103292), (310, 81634), (340, 74431), (343, 73780), (434, 58310), (476, 53165), (490, 51646), (527, 48020), (595, 42532), (620, 40817), (686, 36890), (833, 30380), (868, 29155), (980, 25823), (1054, 24010), (1085, 23324), (1190, 21266), (1372, 18445), (1519, 16660), (1666, 15190), (1715, 14756), (2108, 12005), (2170, 11662), (2380, 10633), (2401, 10540), (2635, 9604), (3038, 8330), (3332, 7595), (3430, 7378), (3689, 6860), (4165, 6076), (4340, 5831), (4802, 5270)]