20121015210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{83}}^1\times {\mathrm{27961}}^1$

素因数の和:28088

約数の個数: 96

約数和(自身を含む): 51918052032

約数和(自身を除く): 31797036822

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 83, 85, 102, 166, 170, 249, 255, 289, 415, 498, 510, 578, 830, 867, 1245, 1411, 1445, 1734, 2490, 2822, 2890, 4233, 4335, 7055, 8466, 8670, 14110, 21165, 23987, 27961, 42330, 47974, 55922, 71961, 83883, 119935, 139805, 143922, 167766, 239870, 279610, 359805, 419415, 475337, 719610, 838830, 950674, 1426011, 2320763, 2376685, 2852022, 4641526, 4753370, 6962289, 7130055, 8080729, 11603815, 13924578, 14260110, 16161458, 23207630, 24242187, 34811445, 39452971, 40403645, 48484374, 69622890, 78905942, 80807290, 118358913, 121210935, 197264855, 236717826, 242421870, 394529710, 591794565, 670700507, 1183589130, 1341401014, 2012101521, 3353502535, 4024203042, 6707005070, 10060507605, 20121015210]

約数ペア:

[(1, 20121015210), (2, 10060507605), (3, 6707005070), (5, 4024203042), (6, 3353502535), (10, 2012101521), (15, 1341401014), (17, 1183589130), (30, 670700507), (34, 591794565), (51, 394529710), (83, 242421870), (85, 236717826), (102, 197264855), (166, 121210935), (170, 118358913), (249, 80807290), (255, 78905942), (289, 69622890), (415, 48484374), (498, 40403645), (510, 39452971), (578, 34811445), (830, 24242187), (867, 23207630), (1245, 16161458), (1411, 14260110), (1445, 13924578), (1734, 11603815), (2490, 8080729), (2822, 7130055), (2890, 6962289), (4233, 4753370), (4335, 4641526), (7055, 2852022), (8466, 2376685), (8670, 2320763), (14110, 1426011), (21165, 950674), (23987, 838830), (27961, 719610), (42330, 475337), (47974, 419415), (55922, 359805), (71961, 279610), (83883, 239870), (119935, 167766), (139805, 143922)]