213025980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{457}}^2$

素因数の和:943

約数の個数: 72

約数和(自身を含む): 632944368

約数和(自身を除く): 419918388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 457, 510, 914, 1020, 1371, 1828, 2285, 2742, 4570, 5484, 6855, 7769, 9140, 13710, 15538, 23307, 27420, 31076, 38845, 46614, 77690, 93228, 116535, 155380, 208849, 233070, 417698, 466140, 626547, 835396, 1044245, 1253094, 2088490, 2506188, 3132735, 3550433, 4176980, 6265470, 7100866, 10651299, 12530940, 14201732, 17752165, 21302598, 35504330, 42605196, 53256495, 71008660, 106512990, 213025980]

約数ペア:

[(1, 213025980), (2, 106512990), (3, 71008660), (4, 53256495), (5, 42605196), (6, 35504330), (10, 21302598), (12, 17752165), (15, 14201732), (17, 12530940), (20, 10651299), (30, 7100866), (34, 6265470), (51, 4176980), (60, 3550433), (68, 3132735), (85, 2506188), (102, 2088490), (170, 1253094), (204, 1044245), (255, 835396), (340, 626547), (457, 466140), (510, 417698), (914, 233070), (1020, 208849), (1371, 155380), (1828, 116535), (2285, 93228), (2742, 77690), (4570, 46614), (5484, 38845), (6855, 31076), (7769, 27420), (9140, 23307), (13710, 15538)]