407081840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:391

約数の個数: 160

約数和(自身を含む): 1102429440

約数和(自身を除く): 695347600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 97, 110, 152, 176, 190, 194, 209, 220, 251, 304, 380, 388, 418, 440, 485, 502, 760, 776, 836, 880, 970, 1004, 1045, 1067, 1255, 1520, 1552, 1672, 1843, 1940, 2008, 2090, 2134, 2510, 2761, 3344, 3686, 3880, 4016, 4180, 4268, 4769, 5020, 5335, 5522, 7372, 7760, 8360, 8536, 9215, 9538, 10040, 10670, 11044, 13805, 14744, 16720, 17072, 18430, 19076, 20080, 20273, 21340, 22088, 23845, 24347, 27610, 29488, 36860, 38152, 40546, 42680, 44176, 47690, 48694, 52459, 55220, 73720, 76304, 81092, 85360, 95380, 97388, 101365, 104918, 110440, 121735, 147440, 162184, 190760, 194776, 202730, 209836, 220880, 243470, 262295, 267817, 324368, 381520, 389552, 405460, 419672, 462593, 486940, 524590, 535634, 810920, 839344, 925186, 973880, 1049180, 1071268, 1339085, 1621840, 1850372, 1947760, 2098360, 2142536, 2312965, 2678170, 3700744, 4196720, 4285072, 4625930, 5088523, 5356340, 7401488, 9251860, 10177046, 10712680, 18503720, 20354092, 21425360, 25442615, 37007440, 40708184, 50885230, 81416368, 101770460, 203540920, 407081840]

約数ペア:

[(1, 407081840), (2, 203540920), (4, 101770460), (5, 81416368), (8, 50885230), (10, 40708184), (11, 37007440), (16, 25442615), (19, 21425360), (20, 20354092), (22, 18503720), (38, 10712680), (40, 10177046), (44, 9251860), (55, 7401488), (76, 5356340), (80, 5088523), (88, 4625930), (95, 4285072), (97, 4196720), (110, 3700744), (152, 2678170), (176, 2312965), (190, 2142536), (194, 2098360), (209, 1947760), (220, 1850372), (251, 1621840), (304, 1339085), (380, 1071268), (388, 1049180), (418, 973880), (440, 925186), (485, 839344), (502, 810920), (760, 535634), (776, 524590), (836, 486940), (880, 462593), (970, 419672), (1004, 405460), (1045, 389552), (1067, 381520), (1255, 324368), (1520, 267817), (1552, 262295), (1672, 243470), (1843, 220880), (1940, 209836), (2008, 202730), (2090, 194776), (2134, 190760), (2510, 162184), (2761, 147440), (3344, 121735), (3686, 110440), (3880, 104918), (4016, 101365), (4180, 97388), (4268, 95380), (4769, 85360), (5020, 81092), (5335, 76304), (5522, 73720), (7372, 55220), (7760, 52459), (8360, 48694), (8536, 47690), (9215, 44176), (9538, 42680), (10040, 40546), (10670, 38152), (11044, 36860), (13805, 29488), (14744, 27610), (16720, 24347), (17072, 23845), (18430, 22088), (19076, 21340), (20080, 20273)]