217465000

素因数分解:

$2^3\times 5^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 160

約数和(自身を含む): 557821440

約数和(自身を除く): 340356440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 31, 40, 46, 50, 61, 62, 92, 100, 115, 122, 124, 125, 155, 184, 200, 230, 244, 248, 250, 305, 310, 460, 488, 500, 575, 610, 620, 625, 713, 775, 920, 1000, 1150, 1220, 1240, 1250, 1403, 1426, 1525, 1550, 1891, 2300, 2440, 2500, 2806, 2852, 2875, 3050, 3100, 3565, 3782, 3875, 4600, 5000, 5612, 5704, 5750, 6100, 6200, 7015, 7130, 7564, 7625, 7750, 9455, 11224, 11500, 12200, 14030, 14260, 14375, 15128, 15250, 15500, 17825, 18910, 19375, 23000, 28060, 28520, 28750, 30500, 31000, 35075, 35650, 37820, 38125, 38750, 43493, 47275, 56120, 57500, 61000, 70150, 71300, 75640, 76250, 77500, 86986, 89125, 94550, 115000, 140300, 142600, 152500, 155000, 173972, 175375, 178250, 189100, 217465, 236375, 280600, 305000, 347944, 350750, 356500, 378200, 434930, 445625, 472750, 701500, 713000, 869860, 876875, 891250, 945500, 1087325, 1181875, 1403000, 1739720, 1753750, 1782500, 1891000, 2174650, 2363750, 3507500, 3565000, 4349300, 4727500, 5436625, 7015000, 8698600, 9455000, 10873250, 21746500, 27183125, 43493000, 54366250, 108732500, 217465000]

約数ペア:

[(1, 217465000), (2, 108732500), (4, 54366250), (5, 43493000), (8, 27183125), (10, 21746500), (20, 10873250), (23, 9455000), (25, 8698600), (31, 7015000), (40, 5436625), (46, 4727500), (50, 4349300), (61, 3565000), (62, 3507500), (92, 2363750), (100, 2174650), (115, 1891000), (122, 1782500), (124, 1753750), (125, 1739720), (155, 1403000), (184, 1181875), (200, 1087325), (230, 945500), (244, 891250), (248, 876875), (250, 869860), (305, 713000), (310, 701500), (460, 472750), (488, 445625), (500, 434930), (575, 378200), (610, 356500), (620, 350750), (625, 347944), (713, 305000), (775, 280600), (920, 236375), (1000, 217465), (1150, 189100), (1220, 178250), (1240, 175375), (1250, 173972), (1403, 155000), (1426, 152500), (1525, 142600), (1550, 140300), (1891, 115000), (2300, 94550), (2440, 89125), (2500, 86986), (2806, 77500), (2852, 76250), (2875, 75640), (3050, 71300), (3100, 70150), (3565, 61000), (3782, 57500), (3875, 56120), (4600, 47275), (5000, 43493), (5612, 38750), (5704, 38125), (5750, 37820), (6100, 35650), (6200, 35075), (7015, 31000), (7130, 30500), (7564, 28750), (7625, 28520), (7750, 28060), (9455, 23000), (11224, 19375), (11500, 18910), (12200, 17825), (14030, 15500), (14260, 15250), (14375, 15128)]