20639190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1$

素因数の和:334

約数の個数: 128

約数和(自身を含む): 61834752

約数和(自身を除く): 41195562

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 17, 22, 26, 30, 33, 34, 39, 51, 55, 65, 66, 78, 85, 102, 110, 130, 143, 165, 170, 187, 195, 221, 255, 283, 286, 330, 374, 390, 429, 442, 510, 561, 566, 663, 715, 849, 858, 935, 1105, 1122, 1326, 1415, 1430, 1698, 1870, 2145, 2210, 2431, 2805, 2830, 3113, 3315, 3679, 4245, 4290, 4811, 4862, 5610, 6226, 6630, 7293, 7358, 8490, 9339, 9622, 11037, 12155, 14433, 14586, 15565, 18395, 18678, 22074, 24055, 24310, 28866, 31130, 36465, 36790, 40469, 46695, 48110, 52921, 55185, 62543, 72165, 72930, 80938, 93390, 105842, 110370, 121407, 125086, 144330, 158763, 187629, 202345, 242814, 264605, 312715, 317526, 375258, 404690, 529210, 607035, 625430, 687973, 793815, 938145, 1214070, 1375946, 1587630, 1876290, 2063919, 3439865, 4127838, 6879730, 10319595, 20639190]

約数ペア:

[(1, 20639190), (2, 10319595), (3, 6879730), (5, 4127838), (6, 3439865), (10, 2063919), (11, 1876290), (13, 1587630), (15, 1375946), (17, 1214070), (22, 938145), (26, 793815), (30, 687973), (33, 625430), (34, 607035), (39, 529210), (51, 404690), (55, 375258), (65, 317526), (66, 312715), (78, 264605), (85, 242814), (102, 202345), (110, 187629), (130, 158763), (143, 144330), (165, 125086), (170, 121407), (187, 110370), (195, 105842), (221, 93390), (255, 80938), (283, 72930), (286, 72165), (330, 62543), (374, 55185), (390, 52921), (429, 48110), (442, 46695), (510, 40469), (561, 36790), (566, 36465), (663, 31130), (715, 28866), (849, 24310), (858, 24055), (935, 22074), (1105, 18678), (1122, 18395), (1326, 15565), (1415, 14586), (1430, 14433), (1698, 12155), (1870, 11037), (2145, 9622), (2210, 9339), (2431, 8490), (2805, 7358), (2830, 7293), (3113, 6630), (3315, 6226), (3679, 5610), (4245, 4862), (4290, 4811)]