20210367520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{229}}^1\times {\mathrm{11257}}^1$

素因数の和:11515

約数の個数: 144

約数和(自身を含む): 55789919640

約数和(自身を除く): 35579552120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 229, 245, 280, 392, 458, 490, 560, 784, 916, 980, 1120, 1145, 1568, 1603, 1832, 1960, 2290, 3206, 3664, 3920, 4580, 6412, 7328, 7840, 8015, 9160, 11221, 11257, 12824, 16030, 18320, 22442, 22514, 25648, 32060, 36640, 44884, 45028, 51296, 56105, 56285, 64120, 78799, 89768, 90056, 112210, 112570, 128240, 157598, 179536, 180112, 224420, 225140, 256480, 315196, 359072, 360224, 393995, 448840, 450280, 551593, 630392, 787990, 897680, 900560, 1103186, 1260784, 1575980, 1795360, 1801120, 2206372, 2521568, 2577853, 2757965, 3151960, 4412744, 5155706, 5515930, 6303920, 8825488, 10311412, 11031860, 12607840, 12889265, 17650976, 18044971, 20622824, 22063720, 25778530, 36089942, 41245648, 44127440, 51557060, 72179884, 82491296, 88254880, 90224855, 103114120, 126314797, 144359768, 180449710, 206228240, 252629594, 288719536, 360899420, 412456480, 505259188, 577439072, 631573985, 721798840, 1010518376, 1263147970, 1443597680, 2021036752, 2526295940, 2887195360, 4042073504, 5052591880, 10105183760, 20210367520]

約数ペア:

[(1, 20210367520), (2, 10105183760), (4, 5052591880), (5, 4042073504), (7, 2887195360), (8, 2526295940), (10, 2021036752), (14, 1443597680), (16, 1263147970), (20, 1010518376), (28, 721798840), (32, 631573985), (35, 577439072), (40, 505259188), (49, 412456480), (56, 360899420), (70, 288719536), (80, 252629594), (98, 206228240), (112, 180449710), (140, 144359768), (160, 126314797), (196, 103114120), (224, 90224855), (229, 88254880), (245, 82491296), (280, 72179884), (392, 51557060), (458, 44127440), (490, 41245648), (560, 36089942), (784, 25778530), (916, 22063720), (980, 20622824), (1120, 18044971), (1145, 17650976), (1568, 12889265), (1603, 12607840), (1832, 11031860), (1960, 10311412), (2290, 8825488), (3206, 6303920), (3664, 5515930), (3920, 5155706), (4580, 4412744), (6412, 3151960), (7328, 2757965), (7840, 2577853), (8015, 2521568), (9160, 2206372), (11221, 1801120), (11257, 1795360), (12824, 1575980), (16030, 1260784), (18320, 1103186), (22442, 900560), (22514, 897680), (25648, 787990), (32060, 630392), (36640, 551593), (44884, 450280), (45028, 448840), (51296, 393995), (56105, 360224), (56285, 359072), (64120, 315196), (78799, 256480), (89768, 225140), (90056, 224420), (112210, 180112), (112570, 179536), (128240, 157598)]