25756020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1$

素因数の和:494

約数の個数: 144

約数和(自身を含む): 87272640

約数和(自身を除く): 61516620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 51, 57, 60, 68, 76, 85, 90, 95, 102, 114, 153, 170, 171, 180, 190, 204, 228, 255, 285, 306, 323, 340, 342, 380, 443, 510, 570, 612, 646, 684, 765, 855, 886, 969, 1020, 1140, 1292, 1329, 1530, 1615, 1710, 1772, 1938, 2215, 2658, 2907, 3060, 3230, 3420, 3876, 3987, 4430, 4845, 5316, 5814, 6460, 6645, 7531, 7974, 8417, 8860, 9690, 11628, 13290, 14535, 15062, 15948, 16834, 19380, 19935, 22593, 25251, 26580, 29070, 30124, 33668, 37655, 39870, 42085, 45186, 50502, 58140, 67779, 75310, 75753, 79740, 84170, 90372, 101004, 112965, 126255, 135558, 143089, 150620, 151506, 168340, 225930, 252510, 271116, 286178, 303012, 338895, 378765, 429267, 451860, 505020, 572356, 677790, 715445, 757530, 858534, 1287801, 1355580, 1430890, 1515060, 1717068, 2146335, 2575602, 2861780, 4292670, 5151204, 6439005, 8585340, 12878010, 25756020]

約数ペア:

[(1, 25756020), (2, 12878010), (3, 8585340), (4, 6439005), (5, 5151204), (6, 4292670), (9, 2861780), (10, 2575602), (12, 2146335), (15, 1717068), (17, 1515060), (18, 1430890), (19, 1355580), (20, 1287801), (30, 858534), (34, 757530), (36, 715445), (38, 677790), (45, 572356), (51, 505020), (57, 451860), (60, 429267), (68, 378765), (76, 338895), (85, 303012), (90, 286178), (95, 271116), (102, 252510), (114, 225930), (153, 168340), (170, 151506), (171, 150620), (180, 143089), (190, 135558), (204, 126255), (228, 112965), (255, 101004), (285, 90372), (306, 84170), (323, 79740), (340, 75753), (342, 75310), (380, 67779), (443, 58140), (510, 50502), (570, 45186), (612, 42085), (646, 39870), (684, 37655), (765, 33668), (855, 30124), (886, 29070), (969, 26580), (1020, 25251), (1140, 22593), (1292, 19935), (1329, 19380), (1530, 16834), (1615, 15948), (1710, 15062), (1772, 14535), (1938, 13290), (2215, 11628), (2658, 9690), (2907, 8860), (3060, 8417), (3230, 7974), (3420, 7531), (3876, 6645), (3987, 6460), (4430, 5814), (4845, 5316)]