218693790

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{461}}^1$

素因数の和:735

約数の個数: 128

約数和(自身を含む): 670602240

約数和(自身を除く): 451908450

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, 189, 210, 251, 270, 315, 378, 461, 502, 630, 753, 922, 945, 1255, 1383, 1506, 1757, 1890, 2259, 2305, 2510, 2766, 3227, 3514, 3765, 4149, 4518, 4610, 5271, 6454, 6777, 6915, 7530, 8298, 8785, 9681, 10542, 11295, 12447, 13554, 13830, 15813, 16135, 17570, 19362, 20745, 22590, 24894, 26355, 29043, 31626, 32270, 33885, 41490, 47439, 48405, 52710, 58086, 62235, 67770, 79065, 87129, 94878, 96810, 115711, 124470, 145215, 158130, 174258, 231422, 237195, 290430, 347133, 435645, 474390, 578555, 694266, 809977, 871290, 1041399, 1157110, 1619954, 1735665, 2082798, 2429931, 3124197, 3471330, 4049885, 4859862, 5206995, 6248394, 7289793, 8099770, 10413990, 12149655, 14579586, 15620985, 21869379, 24299310, 31241970, 36448965, 43738758, 72897930, 109346895, 218693790]

約数ペア:

[(1, 218693790), (2, 109346895), (3, 72897930), (5, 43738758), (6, 36448965), (7, 31241970), (9, 24299310), (10, 21869379), (14, 15620985), (15, 14579586), (18, 12149655), (21, 10413990), (27, 8099770), (30, 7289793), (35, 6248394), (42, 5206995), (45, 4859862), (54, 4049885), (63, 3471330), (70, 3124197), (90, 2429931), (105, 2082798), (126, 1735665), (135, 1619954), (189, 1157110), (210, 1041399), (251, 871290), (270, 809977), (315, 694266), (378, 578555), (461, 474390), (502, 435645), (630, 347133), (753, 290430), (922, 237195), (945, 231422), (1255, 174258), (1383, 158130), (1506, 145215), (1757, 124470), (1890, 115711), (2259, 96810), (2305, 94878), (2510, 87129), (2766, 79065), (3227, 67770), (3514, 62235), (3765, 58086), (4149, 52710), (4518, 48405), (4610, 47439), (5271, 41490), (6454, 33885), (6777, 32270), (6915, 31626), (7530, 29043), (8298, 26355), (8785, 24894), (9681, 22590), (10542, 20745), (11295, 19362), (12447, 17570), (13554, 16135), (13830, 15813)]