20805216390

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{72901}}^1$

素因数の和:73075

約数の個数: 128

約数和(自身を含む): 63827159040

約数和(自身を除く): 43021942650

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 151, 189, 210, 270, 302, 315, 378, 453, 630, 755, 906, 945, 1057, 1359, 1510, 1890, 2114, 2265, 2718, 3171, 4077, 4530, 5285, 6342, 6795, 8154, 9513, 10570, 13590, 15855, 19026, 20385, 28539, 31710, 40770, 47565, 57078, 72901, 95130, 142695, 145802, 218703, 285390, 364505, 437406, 510307, 656109, 729010, 1020614, 1093515, 1312218, 1530921, 1968327, 2187030, 2551535, 3061842, 3280545, 3936654, 4592763, 5103070, 6561090, 7654605, 9185526, 9841635, 11008051, 13778289, 15309210, 19683270, 22016102, 22963815, 27556578, 33024153, 45927630, 55040255, 66048306, 68891445, 77056357, 99072459, 110080510, 137782890, 154112714, 165120765, 198144918, 231169071, 297217377, 330241530, 385281785, 462338142, 495362295, 594434754, 693507213, 770563570, 990724590, 1155845355, 1387014426, 1486086885, 2080521639, 2311690710, 2972173770, 3467536065, 4161043278, 6935072130, 10402608195, 20805216390]

約数ペア:

[(1, 20805216390), (2, 10402608195), (3, 6935072130), (5, 4161043278), (6, 3467536065), (7, 2972173770), (9, 2311690710), (10, 2080521639), (14, 1486086885), (15, 1387014426), (18, 1155845355), (21, 990724590), (27, 770563570), (30, 693507213), (35, 594434754), (42, 495362295), (45, 462338142), (54, 385281785), (63, 330241530), (70, 297217377), (90, 231169071), (105, 198144918), (126, 165120765), (135, 154112714), (151, 137782890), (189, 110080510), (210, 99072459), (270, 77056357), (302, 68891445), (315, 66048306), (378, 55040255), (453, 45927630), (630, 33024153), (755, 27556578), (906, 22963815), (945, 22016102), (1057, 19683270), (1359, 15309210), (1510, 13778289), (1890, 11008051), (2114, 9841635), (2265, 9185526), (2718, 7654605), (3171, 6561090), (4077, 5103070), (4530, 4592763), (5285, 3936654), (6342, 3280545), (6795, 3061842), (8154, 2551535), (9513, 2187030), (10570, 1968327), (13590, 1530921), (15855, 1312218), (19026, 1093515), (20385, 1020614), (28539, 729010), (31710, 656109), (40770, 510307), (47565, 437406), (57078, 364505), (72901, 285390), (95130, 218703), (142695, 145802)]